Home / 15,989.47-22,065.10-9,275.72

Finding the Fourth Proportional to 15,989.47, 22,065.10 and 9,275.72

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Solution

The fourth proportional to 15,989.47, 22,065.10 and 9,275.72 is: 12,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.47 : 22,065.10 = 9,275.72 : x
  2. Step 2: Convert to fraction form
    15,989.47/22,065.10 = 9,275.72/x
  3. Step 3: Cross multiply
    15,989.47x = 22,065.10 × 9,275.72
  4. Step 4: Simplify right side
    15,989.47x = 204,669,555.86
  5. Step 5: Solve for x
    x = 204,669,555.86/15,989.47
  6. Step 6: Final answer
    x = 12,800.27

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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.