Home / 15,288.73-21,098.62-8,482.87

Finding the Fourth Proportional to 15,288.73, 21,098.62 and 8,482.87

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Solution

The fourth proportional to 15,288.73, 21,098.62 and 8,482.87 is: 11,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.73 : 21,098.62 = 8,482.87 : x
  2. Step 2: Convert to fraction form
    15,288.73/21,098.62 = 8,482.87/x
  3. Step 3: Cross multiply
    15,288.73x = 21,098.62 × 8,482.87
  4. Step 4: Simplify right side
    15,288.73x = 178,976,860.97
  5. Step 5: Solve for x
    x = 178,976,860.97/15,288.73
  6. Step 6: Final answer
    x = 11,706.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.