Home / 12,630.81-18,930-6,047.13

Finding the Fourth Proportional to 12,630.81, 18,930 and 6,047.13

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Solution

The fourth proportional to 12,630.81, 18,930 and 6,047.13 is: 9,062.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.81 : 18,930 = 6,047.13 : x
  2. Step 2: Convert to fraction form
    12,630.81/18,930 = 6,047.13/x
  3. Step 3: Cross multiply
    12,630.81x = 18,930 × 6,047.13
  4. Step 4: Simplify right side
    12,630.81x = 114,472,170.90
  5. Step 5: Solve for x
    x = 114,472,170.90/12,630.81
  6. Step 6: Final answer
    x = 9,062.93

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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.