Home / 10,132.40-15,227.40-8,865.20

Finding the Fourth Proportional to 10,132.40, 15,227.40 and 8,865.20

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Solution

The fourth proportional to 10,132.40, 15,227.40 and 8,865.20 is: 13,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132.40 : 15,227.40 = 8,865.20 : x
  2. Step 2: Convert to fraction form
    10,132.40/15,227.40 = 8,865.20/x
  3. Step 3: Cross multiply
    10,132.40x = 15,227.40 × 8,865.20
  4. Step 4: Simplify right side
    10,132.40x = 134,993,946.48
  5. Step 5: Solve for x
    x = 134,993,946.48/10,132.40
  6. Step 6: Final answer
    x = 13,323.00

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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.