Home / 18,118.22-27,146.54-8,762.63

Finding the Fourth Proportional to 18,118.22, 27,146.54 and 8,762.63

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Solution

The fourth proportional to 18,118.22, 27,146.54 and 8,762.63 is: 13,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.22 : 27,146.54 = 8,762.63 : x
  2. Step 2: Convert to fraction form
    18,118.22/27,146.54 = 8,762.63/x
  3. Step 3: Cross multiply
    18,118.22x = 27,146.54 × 8,762.63
  4. Step 4: Simplify right side
    18,118.22x = 237,874,971.97
  5. Step 5: Solve for x
    x = 237,874,971.97/18,118.22
  6. Step 6: Final answer
    x = 13,129.05

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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.