Home / 12,555.20-17,319.57-9,565.84

Finding the Fourth Proportional to 12,555.20, 17,319.57 and 9,565.84

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Solution

The fourth proportional to 12,555.20, 17,319.57 and 9,565.84 is: 13,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.20 : 17,319.57 = 9,565.84 : x
  2. Step 2: Convert to fraction form
    12,555.20/17,319.57 = 9,565.84/x
  3. Step 3: Cross multiply
    12,555.20x = 17,319.57 × 9,565.84
  4. Step 4: Simplify right side
    12,555.20x = 165,676,235.49
  5. Step 5: Solve for x
    x = 165,676,235.49/12,555.20
  6. Step 6: Final answer
    x = 13,195.83

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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.