Home / 12,347.27-17,039.12-6,681.89

Finding the Fourth Proportional to 12,347.27, 17,039.12 and 6,681.89

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Solution

The fourth proportional to 12,347.27, 17,039.12 and 6,681.89 is: 9,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.27 : 17,039.12 = 6,681.89 : x
  2. Step 2: Convert to fraction form
    12,347.27/17,039.12 = 6,681.89/x
  3. Step 3: Cross multiply
    12,347.27x = 17,039.12 × 6,681.89
  4. Step 4: Simplify right side
    12,347.27x = 113,853,534.73
  5. Step 5: Solve for x
    x = 113,853,534.73/12,347.27
  6. Step 6: Final answer
    x = 9,220.95

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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.