Home / 6,612.30-9,123.12-4,255.80

Finding the Fourth Proportional to 6,612.30, 9,123.12 and 4,255.80

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Solution

The fourth proportional to 6,612.30, 9,123.12 and 4,255.80 is: 5,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.30 : 9,123.12 = 4,255.80 : x
  2. Step 2: Convert to fraction form
    6,612.30/9,123.12 = 4,255.80/x
  3. Step 3: Cross multiply
    6,612.30x = 9,123.12 × 4,255.80
  4. Step 4: Simplify right side
    6,612.30x = 38,826,174.10
  5. Step 5: Solve for x
    x = 38,826,174.10/6,612.30
  6. Step 6: Final answer
    x = 5,871.81

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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.