Home / 7,122.18-9,824.52-4,137.66

Finding the Fourth Proportional to 7,122.18, 9,824.52 and 4,137.66

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Solution

The fourth proportional to 7,122.18, 9,824.52 and 4,137.66 is: 5,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.18 : 9,824.52 = 4,137.66 : x
  2. Step 2: Convert to fraction form
    7,122.18/9,824.52 = 4,137.66/x
  3. Step 3: Cross multiply
    7,122.18x = 9,824.52 × 4,137.66
  4. Step 4: Simplify right side
    7,122.18x = 40,650,523.42
  5. Step 5: Solve for x
    x = 40,650,523.42/7,122.18
  6. Step 6: Final answer
    x = 5,707.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.