Home / 15,140.32-20,893.20-8,765.92

Finding the Fourth Proportional to 15,140.32, 20,893.20 and 8,765.92

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Solution

The fourth proportional to 15,140.32, 20,893.20 and 8,765.92 is: 12,096.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.32 : 20,893.20 = 8,765.92 : x
  2. Step 2: Convert to fraction form
    15,140.32/20,893.20 = 8,765.92/x
  3. Step 3: Cross multiply
    15,140.32x = 20,893.20 × 8,765.92
  4. Step 4: Simplify right side
    15,140.32x = 183,148,119.74
  5. Step 5: Solve for x
    x = 183,148,119.74/15,140.32
  6. Step 6: Final answer
    x = 12,096.71

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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.