Home / 18,001.12-26,987.10-8,135.32

Finding the Fourth Proportional to 18,001.12, 26,987.10 and 8,135.32

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Solution

The fourth proportional to 18,001.12, 26,987.10 and 8,135.32 is: 12,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.12 : 26,987.10 = 8,135.32 : x
  2. Step 2: Convert to fraction form
    18,001.12/26,987.10 = 8,135.32/x
  3. Step 3: Cross multiply
    18,001.12x = 26,987.10 × 8,135.32
  4. Step 4: Simplify right side
    18,001.12x = 219,548,694.37
  5. Step 5: Solve for x
    x = 219,548,694.37/18,001.12
  6. Step 6: Final answer
    x = 12,196.39

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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.