Home / 10,528.38-15,778.60-5,587.38

Finding the Fourth Proportional to 10,528.38, 15,778.60 and 5,587.38

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Solution

The fourth proportional to 10,528.38, 15,778.60 and 5,587.38 is: 8,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.38 : 15,778.60 = 5,587.38 : x
  2. Step 2: Convert to fraction form
    10,528.38/15,778.60 = 5,587.38/x
  3. Step 3: Cross multiply
    10,528.38x = 15,778.60 × 5,587.38
  4. Step 4: Simplify right side
    10,528.38x = 88,161,020.10
  5. Step 5: Solve for x
    x = 88,161,020.10/10,528.38
  6. Step 6: Final answer
    x = 8,373.65

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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.