Home / 16,853.90-25,248.45-9,920.30

Finding the Fourth Proportional to 16,853.90, 25,248.45 and 9,920.30

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Solution

The fourth proportional to 16,853.90, 25,248.45 and 9,920.30 is: 14,861.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,853.90 : 25,248.45 = 9,920.30 : x
  2. Step 2: Convert to fraction form
    16,853.90/25,248.45 = 9,920.30/x
  3. Step 3: Cross multiply
    16,853.90x = 25,248.45 × 9,920.30
  4. Step 4: Simplify right side
    16,853.90x = 250,472,198.54
  5. Step 5: Solve for x
    x = 250,472,198.54/16,853.90
  6. Step 6: Final answer
    x = 14,861.38

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1.5x scale

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.