Home / 15,528.70-23,293.05-5,139.10

Finding the Fourth Proportional to 15,528.70, 23,293.05 and 5,139.10

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Solution

The fourth proportional to 15,528.70, 23,293.05 and 5,139.10 is: 7,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,528.70 : 23,293.05 = 5,139.10 : x
  2. Step 2: Convert to fraction form
    15,528.70/23,293.05 = 5,139.10/x
  3. Step 3: Cross multiply
    15,528.70x = 23,293.05 × 5,139.10
  4. Step 4: Simplify right side
    15,528.70x = 119,705,313.26
  5. Step 5: Solve for x
    x = 119,705,313.26/15,528.70
  6. Step 6: Final answer
    x = 7,708.65

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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.