Home / 15,249.60-22,890.76-13,505.40

Finding the Fourth Proportional to 15,249.60, 22,890.76 and 13,505.40

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Solution

The fourth proportional to 15,249.60, 22,890.76 and 13,505.40 is: 20,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.60 : 22,890.76 = 13,505.40 : x
  2. Step 2: Convert to fraction form
    15,249.60/22,890.76 = 13,505.40/x
  3. Step 3: Cross multiply
    15,249.60x = 22,890.76 × 13,505.40
  4. Step 4: Simplify right side
    15,249.60x = 309,148,870.10
  5. Step 5: Solve for x
    x = 309,148,870.10/15,249.60
  6. Step 6: Final answer
    x = 20,272.59

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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.