Home / 10,979.91-15,152.13-6,264.09

Finding the Fourth Proportional to 10,979.91, 15,152.13 and 6,264.09

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Solution

The fourth proportional to 10,979.91, 15,152.13 and 6,264.09 is: 8,644.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.91 : 15,152.13 = 6,264.09 : x
  2. Step 2: Convert to fraction form
    10,979.91/15,152.13 = 6,264.09/x
  3. Step 3: Cross multiply
    10,979.91x = 15,152.13 × 6,264.09
  4. Step 4: Simplify right side
    10,979.91x = 94,914,306.01
  5. Step 5: Solve for x
    x = 94,914,306.01/10,979.91
  6. Step 6: Final answer
    x = 8,644.36

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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.