Home / 15,126.39-20,871.33-8,837.55

Finding the Fourth Proportional to 15,126.39, 20,871.33 and 8,837.55

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Solution

The fourth proportional to 15,126.39, 20,871.33 and 8,837.55 is: 12,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.39 : 20,871.33 = 8,837.55 : x
  2. Step 2: Convert to fraction form
    15,126.39/20,871.33 = 8,837.55/x
  3. Step 3: Cross multiply
    15,126.39x = 20,871.33 × 8,837.55
  4. Step 4: Simplify right side
    15,126.39x = 184,451,422.44
  5. Step 5: Solve for x
    x = 184,451,422.44/15,126.39
  6. Step 6: Final answer
    x = 12,194.01

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1.5x scale

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.