Home / 10,478.10-15,719.46-3,460.26

Finding the Fourth Proportional to 10,478.10, 15,719.46 and 3,460.26

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Solution

The fourth proportional to 10,478.10, 15,719.46 and 3,460.26 is: 5,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.10 : 15,719.46 = 3,460.26 : x
  2. Step 2: Convert to fraction form
    10,478.10/15,719.46 = 3,460.26/x
  3. Step 3: Cross multiply
    10,478.10x = 15,719.46 × 3,460.26
  4. Step 4: Simplify right side
    10,478.10x = 54,393,418.66
  5. Step 5: Solve for x
    x = 54,393,418.66/10,478.10
  6. Step 6: Final answer
    x = 5,191.15

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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.