Home / 13,652.31-20,478.45-4,293.15

Finding the Fourth Proportional to 13,652.31, 20,478.45 and 4,293.15

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Solution

The fourth proportional to 13,652.31, 20,478.45 and 4,293.15 is: 6,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.31 : 20,478.45 = 4,293.15 : x
  2. Step 2: Convert to fraction form
    13,652.31/20,478.45 = 4,293.15/x
  3. Step 3: Cross multiply
    13,652.31x = 20,478.45 × 4,293.15
  4. Step 4: Simplify right side
    13,652.31x = 87,917,057.62
  5. Step 5: Solve for x
    x = 87,917,057.62/13,652.31
  6. Step 6: Final answer
    x = 6,439.72

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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.