Home / 10,478.46-15,714.36-3,457.17

Finding the Fourth Proportional to 10,478.46, 15,714.36 and 3,457.17

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Solution

The fourth proportional to 10,478.46, 15,714.36 and 3,457.17 is: 5,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.46 : 15,714.36 = 3,457.17 : x
  2. Step 2: Convert to fraction form
    10,478.46/15,714.36 = 3,457.17/x
  3. Step 3: Cross multiply
    10,478.46x = 15,714.36 × 3,457.17
  4. Step 4: Simplify right side
    10,478.46x = 54,327,213.96
  5. Step 5: Solve for x
    x = 54,327,213.96/10,478.46
  6. Step 6: Final answer
    x = 5,184.65

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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.