Home / 12,645.30-17,443.26-7,339.44

Finding the Fourth Proportional to 12,645.30, 17,443.26 and 7,339.44

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Solution

The fourth proportional to 12,645.30, 17,443.26 and 7,339.44 is: 10,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.30 : 17,443.26 = 7,339.44 : x
  2. Step 2: Convert to fraction form
    12,645.30/17,443.26 = 7,339.44/x
  3. Step 3: Cross multiply
    12,645.30x = 17,443.26 × 7,339.44
  4. Step 4: Simplify right side
    12,645.30x = 128,023,760.17
  5. Step 5: Solve for x
    x = 128,023,760.17/12,645.30
  6. Step 6: Final answer
    x = 10,124.22

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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.