Home / 11,165.24-15,407.10-6,129.32

Finding the Fourth Proportional to 11,165.24, 15,407.10 and 6,129.32

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Solution

The fourth proportional to 11,165.24, 15,407.10 and 6,129.32 is: 8,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.24 : 15,407.10 = 6,129.32 : x
  2. Step 2: Convert to fraction form
    11,165.24/15,407.10 = 6,129.32/x
  3. Step 3: Cross multiply
    11,165.24x = 15,407.10 × 6,129.32
  4. Step 4: Simplify right side
    11,165.24x = 94,435,046.17
  5. Step 5: Solve for x
    x = 94,435,046.17/11,165.24
  6. Step 6: Final answer
    x = 8,457.95

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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.