Home / 19,680.76-29,521.14-9,299.80

Finding the Fourth Proportional to 19,680.76, 29,521.14 and 9,299.80

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Solution

The fourth proportional to 19,680.76, 29,521.14 and 9,299.80 is: 13,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.76 : 29,521.14 = 9,299.80 : x
  2. Step 2: Convert to fraction form
    19,680.76/29,521.14 = 9,299.80/x
  3. Step 3: Cross multiply
    19,680.76x = 29,521.14 × 9,299.80
  4. Step 4: Simplify right side
    19,680.76x = 274,540,697.77
  5. Step 5: Solve for x
    x = 274,540,697.77/19,680.76
  6. Step 6: Final answer
    x = 13,949.70

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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.