Home / 18,967.22-28,426.52-9,091.70

Finding the Fourth Proportional to 18,967.22, 28,426.52 and 9,091.70

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Solution

The fourth proportional to 18,967.22, 28,426.52 and 9,091.70 is: 13,625.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.22 : 28,426.52 = 9,091.70 : x
  2. Step 2: Convert to fraction form
    18,967.22/28,426.52 = 9,091.70/x
  3. Step 3: Cross multiply
    18,967.22x = 28,426.52 × 9,091.70
  4. Step 4: Simplify right side
    18,967.22x = 258,445,272.48
  5. Step 5: Solve for x
    x = 258,445,272.48/18,967.22
  6. Step 6: Final answer
    x = 13,625.89

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1.5x scale

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.