Home / 15,981.12-23,963.60-9,319.76

Finding the Fourth Proportional to 15,981.12, 23,963.60 and 9,319.76

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Solution

The fourth proportional to 15,981.12, 23,963.60 and 9,319.76 is: 13,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.12 : 23,963.60 = 9,319.76 : x
  2. Step 2: Convert to fraction form
    15,981.12/23,963.60 = 9,319.76/x
  3. Step 3: Cross multiply
    15,981.12x = 23,963.60 × 9,319.76
  4. Step 4: Simplify right side
    15,981.12x = 223,335,000.74
  5. Step 5: Solve for x
    x = 223,335,000.74/15,981.12
  6. Step 6: Final answer
    x = 13,974.93

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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.