Home / 18,897.38-28,350.15-5,750.78

Finding the Fourth Proportional to 18,897.38, 28,350.15 and 5,750.78

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Solution

The fourth proportional to 18,897.38, 28,350.15 and 5,750.78 is: 8,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.38 : 28,350.15 = 5,750.78 : x
  2. Step 2: Convert to fraction form
    18,897.38/28,350.15 = 5,750.78/x
  3. Step 3: Cross multiply
    18,897.38x = 28,350.15 × 5,750.78
  4. Step 4: Simplify right side
    18,897.38x = 163,035,475.62
  5. Step 5: Solve for x
    x = 163,035,475.62/18,897.38
  6. Step 6: Final answer
    x = 8,627.41

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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.