Home / 18,282.12-25,229.36-9,898.62

Finding the Fourth Proportional to 18,282.12, 25,229.36 and 9,898.62

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Solution

The fourth proportional to 18,282.12, 25,229.36 and 9,898.62 is: 13,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.12 : 25,229.36 = 9,898.62 : x
  2. Step 2: Convert to fraction form
    18,282.12/25,229.36 = 9,898.62/x
  3. Step 3: Cross multiply
    18,282.12x = 25,229.36 × 9,898.62
  4. Step 4: Simplify right side
    18,282.12x = 249,735,847.48
  5. Step 5: Solve for x
    x = 249,735,847.48/18,282.12
  6. Step 6: Final answer
    x = 13,660.11

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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.