Home / 12,603.30-17,405.22-10,387.14

Finding the Fourth Proportional to 12,603.30, 17,405.22 and 10,387.14

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Solution

The fourth proportional to 12,603.30, 17,405.22 and 10,387.14 is: 14,344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.30 : 17,405.22 = 10,387.14 : x
  2. Step 2: Convert to fraction form
    12,603.30/17,405.22 = 10,387.14/x
  3. Step 3: Cross multiply
    12,603.30x = 17,405.22 × 10,387.14
  4. Step 4: Simplify right side
    12,603.30x = 180,790,456.87
  5. Step 5: Solve for x
    x = 180,790,456.87/12,603.30
  6. Step 6: Final answer
    x = 14,344.69

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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.