Home / 10,179.28-15,234.32-8,537.68

Finding the Fourth Proportional to 10,179.28, 15,234.32 and 8,537.68

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Solution

The fourth proportional to 10,179.28, 15,234.32 and 8,537.68 is: 12,777.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.28 : 15,234.32 = 8,537.68 : x
  2. Step 2: Convert to fraction form
    10,179.28/15,234.32 = 8,537.68/x
  3. Step 3: Cross multiply
    10,179.28x = 15,234.32 × 8,537.68
  4. Step 4: Simplify right side
    10,179.28x = 130,065,749.18
  5. Step 5: Solve for x
    x = 130,065,749.18/10,179.28
  6. Step 6: Final answer
    x = 12,777.50

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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.