Home / 13,615.68-20,423.52-4,383.04

Finding the Fourth Proportional to 13,615.68, 20,423.52 and 4,383.04

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Solution

The fourth proportional to 13,615.68, 20,423.52 and 4,383.04 is: 6,574.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.68 : 20,423.52 = 4,383.04 : x
  2. Step 2: Convert to fraction form
    13,615.68/20,423.52 = 4,383.04/x
  3. Step 3: Cross multiply
    13,615.68x = 20,423.52 × 4,383.04
  4. Step 4: Simplify right side
    13,615.68x = 89,517,105.10
  5. Step 5: Solve for x
    x = 89,517,105.10/13,615.68
  6. Step 6: Final answer
    x = 6,574.56

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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.