Home / 12,425.20-18,639.92-4,528.31

Finding the Fourth Proportional to 12,425.20, 18,639.92 and 4,528.31

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Solution

The fourth proportional to 12,425.20, 18,639.92 and 4,528.31 is: 6,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.20 : 18,639.92 = 4,528.31 : x
  2. Step 2: Convert to fraction form
    12,425.20/18,639.92 = 4,528.31/x
  3. Step 3: Cross multiply
    12,425.20x = 18,639.92 × 4,528.31
  4. Step 4: Simplify right side
    12,425.20x = 84,407,254.26
  5. Step 5: Solve for x
    x = 84,407,254.26/12,425.20
  6. Step 6: Final answer
    x = 6,793.23

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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.