Home / 10,869.08-15,002.89-6,392.61

Finding the Fourth Proportional to 10,869.08, 15,002.89 and 6,392.61

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Solution

The fourth proportional to 10,869.08, 15,002.89 and 6,392.61 is: 8,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.08 : 15,002.89 = 6,392.61 : x
  2. Step 2: Convert to fraction form
    10,869.08/15,002.89 = 6,392.61/x
  3. Step 3: Cross multiply
    10,869.08x = 15,002.89 × 6,392.61
  4. Step 4: Simplify right side
    10,869.08x = 95,907,608.66
  5. Step 5: Solve for x
    x = 95,907,608.66/10,869.08
  6. Step 6: Final answer
    x = 8,823.90

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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.