Home / 10,158.22-15,200.38-8,386.75

Finding the Fourth Proportional to 10,158.22, 15,200.38 and 8,386.75

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Solution

The fourth proportional to 10,158.22, 15,200.38 and 8,386.75 is: 12,549.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,158.22 : 15,200.38 = 8,386.75 : x
  2. Step 2: Convert to fraction form
    10,158.22/15,200.38 = 8,386.75/x
  3. Step 3: Cross multiply
    10,158.22x = 15,200.38 × 8,386.75
  4. Step 4: Simplify right side
    10,158.22x = 127,481,728.00
  5. Step 5: Solve for x
    x = 127,481,728.00/10,158.22
  6. Step 6: Final answer
    x = 12,549.62

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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.