Home / 15,007.28-20,710.10-8,292.90

Finding the Fourth Proportional to 15,007.28, 20,710.10 and 8,292.90

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Solution

The fourth proportional to 15,007.28, 20,710.10 and 8,292.90 is: 11,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.28 : 20,710.10 = 8,292.90 : x
  2. Step 2: Convert to fraction form
    15,007.28/20,710.10 = 8,292.90/x
  3. Step 3: Cross multiply
    15,007.28x = 20,710.10 × 8,292.90
  4. Step 4: Simplify right side
    15,007.28x = 171,746,788.29
  5. Step 5: Solve for x
    x = 171,746,788.29/15,007.28
  6. Step 6: Final answer
    x = 11,444.23

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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.