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Finding the Fourth Proportional to 15,068.39, 20,793.50 and 8,353.59

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Solution

The fourth proportional to 15,068.39, 20,793.50 and 8,353.59 is: 11,527.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.39 : 20,793.50 = 8,353.59 : x
  2. Step 2: Convert to fraction form
    15,068.39/20,793.50 = 8,353.59/x
  3. Step 3: Cross multiply
    15,068.39x = 20,793.50 × 8,353.59
  4. Step 4: Simplify right side
    15,068.39x = 173,700,373.67
  5. Step 5: Solve for x
    x = 173,700,373.67/15,068.39
  6. Step 6: Final answer
    x = 11,527.47

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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.