Home / 10,979.10-16,439.40-5,774.04

Finding the Fourth Proportional to 10,979.10, 16,439.40 and 5,774.04

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Solution

The fourth proportional to 10,979.10, 16,439.40 and 5,774.04 is: 8,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.10 : 16,439.40 = 5,774.04 : x
  2. Step 2: Convert to fraction form
    10,979.10/16,439.40 = 5,774.04/x
  3. Step 3: Cross multiply
    10,979.10x = 16,439.40 × 5,774.04
  4. Step 4: Simplify right side
    10,979.10x = 94,921,753.18
  5. Step 5: Solve for x
    x = 94,921,753.18/10,979.10
  6. Step 6: Final answer
    x = 8,645.68

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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.