Home / 10,979.12-15,152.04-6,264.80

Finding the Fourth Proportional to 10,979.12, 15,152.04 and 6,264.80

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Solution

The fourth proportional to 10,979.12, 15,152.04 and 6,264.80 is: 8,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.12 : 15,152.04 = 6,264.80 : x
  2. Step 2: Convert to fraction form
    10,979.12/15,152.04 = 6,264.80/x
  3. Step 3: Cross multiply
    10,979.12x = 15,152.04 × 6,264.80
  4. Step 4: Simplify right side
    10,979.12x = 94,924,500.19
  5. Step 5: Solve for x
    x = 94,924,500.19/10,979.12
  6. Step 6: Final answer
    x = 8,645.91

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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.