Home / 6,816.24-9,408.12-4,165.20

Finding the Fourth Proportional to 6,816.24, 9,408.12 and 4,165.20

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Solution

The fourth proportional to 6,816.24, 9,408.12 and 4,165.20 is: 5,749.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816.24 : 9,408.12 = 4,165.20 : x
  2. Step 2: Convert to fraction form
    6,816.24/9,408.12 = 4,165.20/x
  3. Step 3: Cross multiply
    6,816.24x = 9,408.12 × 4,165.20
  4. Step 4: Simplify right side
    6,816.24x = 39,186,701.42
  5. Step 5: Solve for x
    x = 39,186,701.42/6,816.24
  6. Step 6: Final answer
    x = 5,749.02

Related Problems

Find fourth proportional to 3,408.12, 4,704.06 and 2,082.60
Half scale
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Double scale
Find fourth proportional to 6,817.24, 9,409.50 and 4,166.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.