Home / 10,988.11-16,482.94-5,439.97

Finding the Fourth Proportional to 10,988.11, 16,482.94 and 5,439.97

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Solution

The fourth proportional to 10,988.11, 16,482.94 and 5,439.97 is: 8,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.11 : 16,482.94 = 5,439.97 : x
  2. Step 2: Convert to fraction form
    10,988.11/16,482.94 = 5,439.97/x
  3. Step 3: Cross multiply
    10,988.11x = 16,482.94 × 5,439.97
  4. Step 4: Simplify right side
    10,988.11x = 89,666,621.16
  5. Step 5: Solve for x
    x = 89,666,621.16/10,988.11
  6. Step 6: Final answer
    x = 8,160.33

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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.