Home / 10,007.29-15,005.13-3,431.71

Finding the Fourth Proportional to 10,007.29, 15,005.13 and 3,431.71

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Solution

The fourth proportional to 10,007.29, 15,005.13 and 3,431.71 is: 5,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,007.29 : 15,005.13 = 3,431.71 : x
  2. Step 2: Convert to fraction form
    10,007.29/15,005.13 = 3,431.71/x
  3. Step 3: Cross multiply
    10,007.29x = 15,005.13 × 3,431.71
  4. Step 4: Simplify right side
    10,007.29x = 51,493,254.67
  5. Step 5: Solve for x
    x = 51,493,254.67/10,007.29
  6. Step 6: Final answer
    x = 5,145.57

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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.