Home / 10,281.38-14,188.31-5,565.66

Finding the Fourth Proportional to 10,281.38, 14,188.31 and 5,565.66

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Solution

The fourth proportional to 10,281.38, 14,188.31 and 5,565.66 is: 7,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.38 : 14,188.31 = 5,565.66 : x
  2. Step 2: Convert to fraction form
    10,281.38/14,188.31 = 5,565.66/x
  3. Step 3: Cross multiply
    10,281.38x = 14,188.31 × 5,565.66
  4. Step 4: Simplify right side
    10,281.38x = 78,967,281.61
  5. Step 5: Solve for x
    x = 78,967,281.61/10,281.38
  6. Step 6: Final answer
    x = 7,680.61

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Half scale
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Double scale
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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.