Home / 10,867.92-14,996.88-6,391.84

Finding the Fourth Proportional to 10,867.92, 14,996.88 and 6,391.84

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Solution

The fourth proportional to 10,867.92, 14,996.88 and 6,391.84 is: 8,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.92 : 14,996.88 = 6,391.84 : x
  2. Step 2: Convert to fraction form
    10,867.92/14,996.88 = 6,391.84/x
  3. Step 3: Cross multiply
    10,867.92x = 14,996.88 × 6,391.84
  4. Step 4: Simplify right side
    10,867.92x = 95,857,657.46
  5. Step 5: Solve for x
    x = 95,857,657.46/10,867.92
  6. Step 6: Final answer
    x = 8,820.24

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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.