Home / 18,947.88-26,116.74-12,657.96

Finding the Fourth Proportional to 18,947.88, 26,116.74 and 12,657.96

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Solution

The fourth proportional to 18,947.88, 26,116.74 and 12,657.96 is: 17,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.88 : 26,116.74 = 12,657.96 : x
  2. Step 2: Convert to fraction form
    18,947.88/26,116.74 = 12,657.96/x
  3. Step 3: Cross multiply
    18,947.88x = 26,116.74 × 12,657.96
  4. Step 4: Simplify right side
    18,947.88x = 330,584,650.25
  5. Step 5: Solve for x
    x = 330,584,650.25/18,947.88
  6. Step 6: Final answer
    x = 17,447.05

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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.