Home / 10,979.75-15,152.25-6,200.66

Finding the Fourth Proportional to 10,979.75, 15,152.25 and 6,200.66

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Solution

The fourth proportional to 10,979.75, 15,152.25 and 6,200.66 is: 8,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.75 : 15,152.25 = 6,200.66 : x
  2. Step 2: Convert to fraction form
    10,979.75/15,152.25 = 6,200.66/x
  3. Step 3: Cross multiply
    10,979.75x = 15,152.25 × 6,200.66
  4. Step 4: Simplify right side
    10,979.75x = 93,953,874.72
  5. Step 5: Solve for x
    x = 93,953,874.72/10,979.75
  6. Step 6: Final answer
    x = 8,557.02

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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.