Home / 10,478.33-15,719.45-3,458.84

Finding the Fourth Proportional to 10,478.33, 15,719.45 and 3,458.84

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Solution

The fourth proportional to 10,478.33, 15,719.45 and 3,458.84 is: 5,188.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.33 : 15,719.45 = 3,458.84 : x
  2. Step 2: Convert to fraction form
    10,478.33/15,719.45 = 3,458.84/x
  3. Step 3: Cross multiply
    10,478.33x = 15,719.45 × 3,458.84
  4. Step 4: Simplify right side
    10,478.33x = 54,370,996.02
  5. Step 5: Solve for x
    x = 54,370,996.02/10,478.33
  6. Step 6: Final answer
    x = 5,188.90

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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.