Home / 10,979.50-15,151.72-6,265.30

Finding the Fourth Proportional to 10,979.50, 15,151.72 and 6,265.30

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Solution

The fourth proportional to 10,979.50, 15,151.72 and 6,265.30 is: 8,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.50 : 15,151.72 = 6,265.30 : x
  2. Step 2: Convert to fraction form
    10,979.50/15,151.72 = 6,265.30/x
  3. Step 3: Cross multiply
    10,979.50x = 15,151.72 × 6,265.30
  4. Step 4: Simplify right side
    10,979.50x = 94,930,071.32
  5. Step 5: Solve for x
    x = 94,930,071.32/10,979.50
  6. Step 6: Final answer
    x = 8,646.12

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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.