Home / 18,373.26-25,354.98-9,989.76

Finding the Fourth Proportional to 18,373.26, 25,354.98 and 9,989.76

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Solution

The fourth proportional to 18,373.26, 25,354.98 and 9,989.76 is: 13,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373.26 : 25,354.98 = 9,989.76 : x
  2. Step 2: Convert to fraction form
    18,373.26/25,354.98 = 9,989.76/x
  3. Step 3: Cross multiply
    18,373.26x = 25,354.98 × 9,989.76
  4. Step 4: Simplify right side
    18,373.26x = 253,290,165.00
  5. Step 5: Solve for x
    x = 253,290,165.00/18,373.26
  6. Step 6: Final answer
    x = 13,785.80

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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.