Home / 18,299.12-25,252.70-9,915.62

Finding the Fourth Proportional to 18,299.12, 25,252.70 and 9,915.62

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Solution

The fourth proportional to 18,299.12, 25,252.70 and 9,915.62 is: 13,683.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.12 : 25,252.70 = 9,915.62 : x
  2. Step 2: Convert to fraction form
    18,299.12/25,252.70 = 9,915.62/x
  3. Step 3: Cross multiply
    18,299.12x = 25,252.70 × 9,915.62
  4. Step 4: Simplify right side
    18,299.12x = 250,396,001.33
  5. Step 5: Solve for x
    x = 250,396,001.33/18,299.12
  6. Step 6: Final answer
    x = 13,683.50

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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.