Home / 12,479.06-17,205.54-7,995.44

Finding the Fourth Proportional to 12,479.06, 17,205.54 and 7,995.44

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Solution

The fourth proportional to 12,479.06, 17,205.54 and 7,995.44 is: 11,023.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.06 : 17,205.54 = 7,995.44 : x
  2. Step 2: Convert to fraction form
    12,479.06/17,205.54 = 7,995.44/x
  3. Step 3: Cross multiply
    12,479.06x = 17,205.54 × 7,995.44
  4. Step 4: Simplify right side
    12,479.06x = 137,565,862.74
  5. Step 5: Solve for x
    x = 137,565,862.74/12,479.06
  6. Step 6: Final answer
    x = 11,023.74

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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.