Home / 10,869.60-15,000.48-6,393.54

Finding the Fourth Proportional to 10,869.60, 15,000.48 and 6,393.54

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Solution

The fourth proportional to 10,869.60, 15,000.48 and 6,393.54 is: 8,823.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.60 : 15,000.48 = 6,393.54 : x
  2. Step 2: Convert to fraction form
    10,869.60/15,000.48 = 6,393.54/x
  3. Step 3: Cross multiply
    10,869.60x = 15,000.48 × 6,393.54
  4. Step 4: Simplify right side
    10,869.60x = 95,906,168.90
  5. Step 5: Solve for x
    x = 95,906,168.90/10,869.60
  6. Step 6: Final answer
    x = 8,823.34

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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.