Home / 10,645.02-15,972.39-5,454.54

Finding the Fourth Proportional to 10,645.02, 15,972.39 and 5,454.54

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Solution

The fourth proportional to 10,645.02, 15,972.39 and 5,454.54 is: 8,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.02 : 15,972.39 = 5,454.54 : x
  2. Step 2: Convert to fraction form
    10,645.02/15,972.39 = 5,454.54/x
  3. Step 3: Cross multiply
    10,645.02x = 15,972.39 × 5,454.54
  4. Step 4: Simplify right side
    10,645.02x = 87,122,040.15
  5. Step 5: Solve for x
    x = 87,122,040.15/10,645.02
  6. Step 6: Final answer
    x = 8,184.30

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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.