Home / 13,147.52-18,143.56-9,793.20

Finding the Fourth Proportional to 13,147.52, 18,143.56 and 9,793.20

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Solution

The fourth proportional to 13,147.52, 18,143.56 and 9,793.20 is: 13,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.52 : 18,143.56 = 9,793.20 : x
  2. Step 2: Convert to fraction form
    13,147.52/18,143.56 = 9,793.20/x
  3. Step 3: Cross multiply
    13,147.52x = 18,143.56 × 9,793.20
  4. Step 4: Simplify right side
    13,147.52x = 177,683,511.79
  5. Step 5: Solve for x
    x = 177,683,511.79/13,147.52
  6. Step 6: Final answer
    x = 13,514.60

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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.