Home / 10,319.45-15,479.17-4,159.13

Finding the Fourth Proportional to 10,319.45, 15,479.17 and 4,159.13

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Solution

The fourth proportional to 10,319.45, 15,479.17 and 4,159.13 is: 6,238.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.45 : 15,479.17 = 4,159.13 : x
  2. Step 2: Convert to fraction form
    10,319.45/15,479.17 = 4,159.13/x
  3. Step 3: Cross multiply
    10,319.45x = 15,479.17 × 4,159.13
  4. Step 4: Simplify right side
    10,319.45x = 64,379,792.53
  5. Step 5: Solve for x
    x = 64,379,792.53/10,319.45
  6. Step 6: Final answer
    x = 6,238.69

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Half scale
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Double scale
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Similar ratio
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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.