Home / 18,339.30-27,519.35-9,905.70

Finding the Fourth Proportional to 18,339.30, 27,519.35 and 9,905.70

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Solution

The fourth proportional to 18,339.30, 27,519.35 and 9,905.70 is: 14,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.30 : 27,519.35 = 9,905.70 : x
  2. Step 2: Convert to fraction form
    18,339.30/27,519.35 = 9,905.70/x
  3. Step 3: Cross multiply
    18,339.30x = 27,519.35 × 9,905.70
  4. Step 4: Simplify right side
    18,339.30x = 272,598,425.30
  5. Step 5: Solve for x
    x = 272,598,425.30/18,339.30
  6. Step 6: Final answer
    x = 14,864.17

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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.