Home / 13,612.29-18,785.46-7,950.66

Finding the Fourth Proportional to 13,612.29, 18,785.46 and 7,950.66

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Solution

The fourth proportional to 13,612.29, 18,785.46 and 7,950.66 is: 10,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.29 : 18,785.46 = 7,950.66 : x
  2. Step 2: Convert to fraction form
    13,612.29/18,785.46 = 7,950.66/x
  3. Step 3: Cross multiply
    13,612.29x = 18,785.46 × 7,950.66
  4. Step 4: Simplify right side
    13,612.29x = 149,356,805.40
  5. Step 5: Solve for x
    x = 149,356,805.40/13,612.29
  6. Step 6: Final answer
    x = 10,972.20

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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.