Home / 10,972.32-15,129.36-8,846.88

Finding the Fourth Proportional to 10,972.32, 15,129.36 and 8,846.88

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Solution

The fourth proportional to 10,972.32, 15,129.36 and 8,846.88 is: 12,198.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.32 : 15,129.36 = 8,846.88 : x
  2. Step 2: Convert to fraction form
    10,972.32/15,129.36 = 8,846.88/x
  3. Step 3: Cross multiply
    10,972.32x = 15,129.36 × 8,846.88
  4. Step 4: Simplify right side
    10,972.32x = 133,847,632.40
  5. Step 5: Solve for x
    x = 133,847,632.40/10,972.32
  6. Step 6: Final answer
    x = 12,198.66

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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.