Home / 6,647.20-9,969.28-5,543.67

Finding the Fourth Proportional to 6,647.20, 9,969.28 and 5,543.67

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Solution

The fourth proportional to 6,647.20, 9,969.28 and 5,543.67 is: 8,314.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.20 : 9,969.28 = 5,543.67 : x
  2. Step 2: Convert to fraction form
    6,647.20/9,969.28 = 5,543.67/x
  3. Step 3: Cross multiply
    6,647.20x = 9,969.28 × 5,543.67
  4. Step 4: Simplify right side
    6,647.20x = 55,266,421.98
  5. Step 5: Solve for x
    x = 55,266,421.98/6,647.20
  6. Step 6: Final answer
    x = 8,314.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.