Home / 10,152.26-15,191.48-8,380.79

Finding the Fourth Proportional to 10,152.26, 15,191.48 and 8,380.79

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Solution

The fourth proportional to 10,152.26, 15,191.48 and 8,380.79 is: 12,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.26 : 15,191.48 = 8,380.79 : x
  2. Step 2: Convert to fraction form
    10,152.26/15,191.48 = 8,380.79/x
  3. Step 3: Cross multiply
    10,152.26x = 15,191.48 × 8,380.79
  4. Step 4: Simplify right side
    10,152.26x = 127,316,605.63
  5. Step 5: Solve for x
    x = 127,316,605.63/10,152.26
  6. Step 6: Final answer
    x = 12,540.72

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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.