Home / 10,512.99-15,772.52-3,117.61

Finding the Fourth Proportional to 10,512.99, 15,772.52 and 3,117.61

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Solution

The fourth proportional to 10,512.99, 15,772.52 and 3,117.61 is: 4,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.99 : 15,772.52 = 3,117.61 : x
  2. Step 2: Convert to fraction form
    10,512.99/15,772.52 = 3,117.61/x
  3. Step 3: Cross multiply
    10,512.99x = 15,772.52 × 3,117.61
  4. Step 4: Simplify right side
    10,512.99x = 49,172,566.08
  5. Step 5: Solve for x
    x = 49,172,566.08/10,512.99
  6. Step 6: Final answer
    x = 4,677.32

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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.