Home / 10,389.52-15,584.28-5,194.18

Finding the Fourth Proportional to 10,389.52, 15,584.28 and 5,194.18

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Solution

The fourth proportional to 10,389.52, 15,584.28 and 5,194.18 is: 7,791.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.52 : 15,584.28 = 5,194.18 : x
  2. Step 2: Convert to fraction form
    10,389.52/15,584.28 = 5,194.18/x
  3. Step 3: Cross multiply
    10,389.52x = 15,584.28 × 5,194.18
  4. Step 4: Simplify right side
    10,389.52x = 80,947,555.49
  5. Step 5: Solve for x
    x = 80,947,555.49/10,389.52
  6. Step 6: Final answer
    x = 7,791.27

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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.