Home / 12,347.29-17,039.13-6,681.91

Finding the Fourth Proportional to 12,347.29, 17,039.13 and 6,681.91

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Solution

The fourth proportional to 12,347.29, 17,039.13 and 6,681.91 is: 9,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.29 : 17,039.13 = 6,681.91 : x
  2. Step 2: Convert to fraction form
    12,347.29/17,039.13 = 6,681.91/x
  3. Step 3: Cross multiply
    12,347.29x = 17,039.13 × 6,681.91
  4. Step 4: Simplify right side
    12,347.29x = 113,853,933.14
  5. Step 5: Solve for x
    x = 113,853,933.14/12,347.29
  6. Step 6: Final answer
    x = 9,220.97

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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.