Home / 18,402.96-27,600.38-5,255.04

Finding the Fourth Proportional to 18,402.96, 27,600.38 and 5,255.04

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Solution

The fourth proportional to 18,402.96, 27,600.38 and 5,255.04 is: 7,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.96 : 27,600.38 = 5,255.04 : x
  2. Step 2: Convert to fraction form
    18,402.96/27,600.38 = 5,255.04/x
  3. Step 3: Cross multiply
    18,402.96x = 27,600.38 × 5,255.04
  4. Step 4: Simplify right side
    18,402.96x = 145,041,100.92
  5. Step 5: Solve for x
    x = 145,041,100.92/18,402.96
  6. Step 6: Final answer
    x = 7,881.40

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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.