Home / 6,478.18-9,711.10-4,131.60

Finding the Fourth Proportional to 6,478.18, 9,711.10 and 4,131.60

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Solution

The fourth proportional to 6,478.18, 9,711.10 and 4,131.60 is: 6,193.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478.18 : 9,711.10 = 4,131.60 : x
  2. Step 2: Convert to fraction form
    6,478.18/9,711.10 = 4,131.60/x
  3. Step 3: Cross multiply
    6,478.18x = 9,711.10 × 4,131.60
  4. Step 4: Simplify right side
    6,478.18x = 40,122,380.76
  5. Step 5: Solve for x
    x = 40,122,380.76/6,478.18
  6. Step 6: Final answer
    x = 6,193.46

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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.