Home / 12,602.11-17,385.07-8,127.30

Finding the Fourth Proportional to 12,602.11, 17,385.07 and 8,127.30

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Solution

The fourth proportional to 12,602.11, 17,385.07 and 8,127.30 is: 11,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.11 : 17,385.07 = 8,127.30 : x
  2. Step 2: Convert to fraction form
    12,602.11/17,385.07 = 8,127.30/x
  3. Step 3: Cross multiply
    12,602.11x = 17,385.07 × 8,127.30
  4. Step 4: Simplify right side
    12,602.11x = 141,293,679.41
  5. Step 5: Solve for x
    x = 141,293,679.41/12,602.11
  6. Step 6: Final answer
    x = 11,211.91

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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.