Home / 17,928.15-26,887.65-12,712.15

Finding the Fourth Proportional to 17,928.15, 26,887.65 and 12,712.15

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Solution

The fourth proportional to 17,928.15, 26,887.65 and 12,712.15 is: 19,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,928.15 : 26,887.65 = 12,712.15 : x
  2. Step 2: Convert to fraction form
    17,928.15/26,887.65 = 12,712.15/x
  3. Step 3: Cross multiply
    17,928.15x = 26,887.65 × 12,712.15
  4. Step 4: Simplify right side
    17,928.15x = 341,799,839.95
  5. Step 5: Solve for x
    x = 341,799,839.95/17,928.15
  6. Step 6: Final answer
    x = 19,064.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.