Home / 14,740.38-20,338.20-9,360.90

Finding the Fourth Proportional to 14,740.38, 20,338.20 and 9,360.90

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Solution

The fourth proportional to 14,740.38, 20,338.20 and 9,360.90 is: 12,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740.38 : 20,338.20 = 9,360.90 : x
  2. Step 2: Convert to fraction form
    14,740.38/20,338.20 = 9,360.90/x
  3. Step 3: Cross multiply
    14,740.38x = 20,338.20 × 9,360.90
  4. Step 4: Simplify right side
    14,740.38x = 190,383,856.38
  5. Step 5: Solve for x
    x = 190,383,856.38/14,740.38
  6. Step 6: Final answer
    x = 12,915.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.