Home / 12,549.36-18,828.66-5,151.84

Finding the Fourth Proportional to 12,549.36, 18,828.66 and 5,151.84

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Solution

The fourth proportional to 12,549.36, 18,828.66 and 5,151.84 is: 7,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.36 : 18,828.66 = 5,151.84 : x
  2. Step 2: Convert to fraction form
    12,549.36/18,828.66 = 5,151.84/x
  3. Step 3: Cross multiply
    12,549.36x = 18,828.66 × 5,151.84
  4. Step 4: Simplify right side
    12,549.36x = 97,002,243.73
  5. Step 5: Solve for x
    x = 97,002,243.73/12,549.36
  6. Step 6: Final answer
    x = 7,729.66

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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.