Home / 16,225.28-22,390.80-9,151.28

Finding the Fourth Proportional to 16,225.28, 22,390.80 and 9,151.28

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Solution

The fourth proportional to 16,225.28, 22,390.80 and 9,151.28 is: 12,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,225.28 : 22,390.80 = 9,151.28 : x
  2. Step 2: Convert to fraction form
    16,225.28/22,390.80 = 9,151.28/x
  3. Step 3: Cross multiply
    16,225.28x = 22,390.80 × 9,151.28
  4. Step 4: Simplify right side
    16,225.28x = 204,904,480.22
  5. Step 5: Solve for x
    x = 204,904,480.22/16,225.28
  6. Step 6: Final answer
    x = 12,628.72

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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.