Home / 19,121.46-28,660.69-9,735.13

Finding the Fourth Proportional to 19,121.46, 28,660.69 and 9,735.13

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Solution

The fourth proportional to 19,121.46, 28,660.69 and 9,735.13 is: 14,591.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.46 : 28,660.69 = 9,735.13 : x
  2. Step 2: Convert to fraction form
    19,121.46/28,660.69 = 9,735.13/x
  3. Step 3: Cross multiply
    19,121.46x = 28,660.69 × 9,735.13
  4. Step 4: Simplify right side
    19,121.46x = 279,015,543.04
  5. Step 5: Solve for x
    x = 279,015,543.04/19,121.46
  6. Step 6: Final answer
    x = 14,591.75

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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.