Home / 18,319.52-25,281.21-9,936.02

Finding the Fourth Proportional to 18,319.52, 25,281.21 and 9,936.02

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Solution

The fourth proportional to 18,319.52, 25,281.21 and 9,936.02 is: 13,711.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.52 : 25,281.21 = 9,936.02 : x
  2. Step 2: Convert to fraction form
    18,319.52/25,281.21 = 9,936.02/x
  3. Step 3: Cross multiply
    18,319.52x = 25,281.21 × 9,936.02
  4. Step 4: Simplify right side
    18,319.52x = 251,194,608.18
  5. Step 5: Solve for x
    x = 251,194,608.18/18,319.52
  6. Step 6: Final answer
    x = 13,711.86

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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.