Home / 10,143.17-14,001.42-7,632.57

Finding the Fourth Proportional to 10,143.17, 14,001.42 and 7,632.57

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Solution

The fourth proportional to 10,143.17, 14,001.42 and 7,632.57 is: 10,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.17 : 14,001.42 = 7,632.57 : x
  2. Step 2: Convert to fraction form
    10,143.17/14,001.42 = 7,632.57/x
  3. Step 3: Cross multiply
    10,143.17x = 14,001.42 × 7,632.57
  4. Step 4: Simplify right side
    10,143.17x = 106,866,818.25
  5. Step 5: Solve for x
    x = 106,866,818.25/10,143.17
  6. Step 6: Final answer
    x = 10,535.85

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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.