Home / 7,146.56-9,861.54-4,002.68

Finding the Fourth Proportional to 7,146.56, 9,861.54 and 4,002.68

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Solution

The fourth proportional to 7,146.56, 9,861.54 and 4,002.68 is: 5,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.56 : 9,861.54 = 4,002.68 : x
  2. Step 2: Convert to fraction form
    7,146.56/9,861.54 = 4,002.68/x
  3. Step 3: Cross multiply
    7,146.56x = 9,861.54 × 4,002.68
  4. Step 4: Simplify right side
    7,146.56x = 39,472,588.93
  5. Step 5: Solve for x
    x = 39,472,588.93/7,146.56
  6. Step 6: Final answer
    x = 5,523.30

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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.