Home / 16,490.32-22,758.28-9,417.80

Finding the Fourth Proportional to 16,490.32, 22,758.28 and 9,417.80

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Solution

The fourth proportional to 16,490.32, 22,758.28 and 9,417.80 is: 12,997.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,490.32 : 22,758.28 = 9,417.80 : x
  2. Step 2: Convert to fraction form
    16,490.32/22,758.28 = 9,417.80/x
  3. Step 3: Cross multiply
    16,490.32x = 22,758.28 × 9,417.80
  4. Step 4: Simplify right side
    16,490.32x = 214,332,962.74
  5. Step 5: Solve for x
    x = 214,332,962.74/16,490.32
  6. Step 6: Final answer
    x = 12,997.50

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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.