Home / 10,085.91-15,117.66-7,612.71

Finding the Fourth Proportional to 10,085.91, 15,117.66 and 7,612.71

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Solution

The fourth proportional to 10,085.91, 15,117.66 and 7,612.71 is: 11,410.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.91 : 15,117.66 = 7,612.71 : x
  2. Step 2: Convert to fraction form
    10,085.91/15,117.66 = 7,612.71/x
  3. Step 3: Cross multiply
    10,085.91x = 15,117.66 × 7,612.71
  4. Step 4: Simplify right side
    10,085.91x = 115,086,361.46
  5. Step 5: Solve for x
    x = 115,086,361.46/10,085.91
  6. Step 6: Final answer
    x = 11,410.61

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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.