Home / 10,236.10-15,390.60-8,632.30

Finding the Fourth Proportional to 10,236.10, 15,390.60 and 8,632.30

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Solution

The fourth proportional to 10,236.10, 15,390.60 and 8,632.30 is: 12,979.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,236.10 : 15,390.60 = 8,632.30 : x
  2. Step 2: Convert to fraction form
    10,236.10/15,390.60 = 8,632.30/x
  3. Step 3: Cross multiply
    10,236.10x = 15,390.60 × 8,632.30
  4. Step 4: Simplify right side
    10,236.10x = 132,856,276.38
  5. Step 5: Solve for x
    x = 132,856,276.38/10,236.10
  6. Step 6: Final answer
    x = 12,979.19

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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.