Home / 10,635.60-15,955.20-5,703.90

Finding the Fourth Proportional to 10,635.60, 15,955.20 and 5,703.90

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Solution

The fourth proportional to 10,635.60, 15,955.20 and 5,703.90 is: 8,556.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,635.60 : 15,955.20 = 5,703.90 : x
  2. Step 2: Convert to fraction form
    10,635.60/15,955.20 = 5,703.90/x
  3. Step 3: Cross multiply
    10,635.60x = 15,955.20 × 5,703.90
  4. Step 4: Simplify right side
    10,635.60x = 91,006,865.28
  5. Step 5: Solve for x
    x = 91,006,865.28/10,635.60
  6. Step 6: Final answer
    x = 8,556.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.