Home / 6,617.12-9,122.40-5,417.92

Finding the Fourth Proportional to 6,617.12, 9,122.40 and 5,417.92

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Solution

The fourth proportional to 6,617.12, 9,122.40 and 5,417.92 is: 7,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.12 : 9,122.40 = 5,417.92 : x
  2. Step 2: Convert to fraction form
    6,617.12/9,122.40 = 5,417.92/x
  3. Step 3: Cross multiply
    6,617.12x = 9,122.40 × 5,417.92
  4. Step 4: Simplify right side
    6,617.12x = 49,424,433.41
  5. Step 5: Solve for x
    x = 49,424,433.41/6,617.12
  6. Step 6: Final answer
    x = 7,469.18

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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.