Home / 10,125.06-15,191.97-5,439.60

Finding the Fourth Proportional to 10,125.06, 15,191.97 and 5,439.60

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Solution

The fourth proportional to 10,125.06, 15,191.97 and 5,439.60 is: 8,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.06 : 15,191.97 = 5,439.60 : x
  2. Step 2: Convert to fraction form
    10,125.06/15,191.97 = 5,439.60/x
  3. Step 3: Cross multiply
    10,125.06x = 15,191.97 × 5,439.60
  4. Step 4: Simplify right side
    10,125.06x = 82,638,240.01
  5. Step 5: Solve for x
    x = 82,638,240.01/10,125.06
  6. Step 6: Final answer
    x = 8,161.75

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1.5x scale

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.