Home / 10,968.32-15,135.04-6,251.20

Finding the Fourth Proportional to 10,968.32, 15,135.04 and 6,251.20

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Solution

The fourth proportional to 10,968.32, 15,135.04 and 6,251.20 is: 8,625.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.32 : 15,135.04 = 6,251.20 : x
  2. Step 2: Convert to fraction form
    10,968.32/15,135.04 = 6,251.20/x
  3. Step 3: Cross multiply
    10,968.32x = 15,135.04 × 6,251.20
  4. Step 4: Simplify right side
    10,968.32x = 94,612,162.05
  5. Step 5: Solve for x
    x = 94,612,162.05/10,968.32
  6. Step 6: Final answer
    x = 8,625.95

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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.