Home / 10,478.46-15,719.63-3,458.96

Finding the Fourth Proportional to 10,478.46, 15,719.63 and 3,458.96

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Solution

The fourth proportional to 10,478.46, 15,719.63 and 3,458.96 is: 5,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.46 : 15,719.63 = 3,458.96 : x
  2. Step 2: Convert to fraction form
    10,478.46/15,719.63 = 3,458.96/x
  3. Step 3: Cross multiply
    10,478.46x = 15,719.63 × 3,458.96
  4. Step 4: Simplify right side
    10,478.46x = 54,373,619.33
  5. Step 5: Solve for x
    x = 54,373,619.33/10,478.46
  6. Step 6: Final answer
    x = 5,189.08

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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.