Home / 10,140.06-15,214.49-5,454.60

Finding the Fourth Proportional to 10,140.06, 15,214.49 and 5,454.60

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Solution

The fourth proportional to 10,140.06, 15,214.49 and 5,454.60 is: 8,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.06 : 15,214.49 = 5,454.60 : x
  2. Step 2: Convert to fraction form
    10,140.06/15,214.49 = 5,454.60/x
  3. Step 3: Cross multiply
    10,140.06x = 15,214.49 × 5,454.60
  4. Step 4: Simplify right side
    10,140.06x = 82,988,929.88
  5. Step 5: Solve for x
    x = 82,988,929.88/10,140.06
  6. Step 6: Final answer
    x = 8,184.26

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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.