Home / 18,289.44-27,432.72-7,901.28

Finding the Fourth Proportional to 18,289.44, 27,432.72 and 7,901.28

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Solution

The fourth proportional to 18,289.44, 27,432.72 and 7,901.28 is: 11,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.44 : 27,432.72 = 7,901.28 : x
  2. Step 2: Convert to fraction form
    18,289.44/27,432.72 = 7,901.28/x
  3. Step 3: Cross multiply
    18,289.44x = 27,432.72 × 7,901.28
  4. Step 4: Simplify right side
    18,289.44x = 216,753,601.88
  5. Step 5: Solve for x
    x = 216,753,601.88/18,289.44
  6. Step 6: Final answer
    x = 11,851.30

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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.