Home / 11,740.28-17,612.15-3,419.21

Finding the Fourth Proportional to 11,740.28, 17,612.15 and 3,419.21

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Solution

The fourth proportional to 11,740.28, 17,612.15 and 3,419.21 is: 5,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,740.28 : 17,612.15 = 3,419.21 : x
  2. Step 2: Convert to fraction form
    11,740.28/17,612.15 = 3,419.21/x
  3. Step 3: Cross multiply
    11,740.28x = 17,612.15 × 3,419.21
  4. Step 4: Simplify right side
    11,740.28x = 60,219,666.34
  5. Step 5: Solve for x
    x = 60,219,666.34/11,740.28
  6. Step 6: Final answer
    x = 5,129.32

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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.