Home / 12,002.81-18,003.67-4,610.75

Finding the Fourth Proportional to 12,002.81, 18,003.67 and 4,610.75

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Solution

The fourth proportional to 12,002.81, 18,003.67 and 4,610.75 is: 6,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002.81 : 18,003.67 = 4,610.75 : x
  2. Step 2: Convert to fraction form
    12,002.81/18,003.67 = 4,610.75/x
  3. Step 3: Cross multiply
    12,002.81x = 18,003.67 × 4,610.75
  4. Step 4: Simplify right side
    12,002.81x = 83,010,319.91
  5. Step 5: Solve for x
    x = 83,010,319.91/12,002.81
  6. Step 6: Final answer
    x = 6,915.91

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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.