Home / 11,165.48-15,408.52-6,130.20

Finding the Fourth Proportional to 11,165.48, 15,408.52 and 6,130.20

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Solution

The fourth proportional to 11,165.48, 15,408.52 and 6,130.20 is: 8,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.48 : 15,408.52 = 6,130.20 : x
  2. Step 2: Convert to fraction form
    11,165.48/15,408.52 = 6,130.20/x
  3. Step 3: Cross multiply
    11,165.48x = 15,408.52 × 6,130.20
  4. Step 4: Simplify right side
    11,165.48x = 94,457,309.30
  5. Step 5: Solve for x
    x = 94,457,309.30/11,165.48
  6. Step 6: Final answer
    x = 8,459.76

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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.