Home / 10,644.90-15,967.38-3,719.40

Finding the Fourth Proportional to 10,644.90, 15,967.38 and 3,719.40

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Solution

The fourth proportional to 10,644.90, 15,967.38 and 3,719.40 is: 5,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.90 : 15,967.38 = 3,719.40 : x
  2. Step 2: Convert to fraction form
    10,644.90/15,967.38 = 3,719.40/x
  3. Step 3: Cross multiply
    10,644.90x = 15,967.38 × 3,719.40
  4. Step 4: Simplify right side
    10,644.90x = 59,389,073.17
  5. Step 5: Solve for x
    x = 59,389,073.17/10,644.90
  6. Step 6: Final answer
    x = 5,579.11

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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.