Home / 13,753.44-20,627.04-5,430.72

Finding the Fourth Proportional to 13,753.44, 20,627.04 and 5,430.72

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Solution

The fourth proportional to 13,753.44, 20,627.04 and 5,430.72 is: 8,144.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.44 : 20,627.04 = 5,430.72 : x
  2. Step 2: Convert to fraction form
    13,753.44/20,627.04 = 5,430.72/x
  3. Step 3: Cross multiply
    13,753.44x = 20,627.04 × 5,430.72
  4. Step 4: Simplify right side
    13,753.44x = 112,019,678.67
  5. Step 5: Solve for x
    x = 112,019,678.67/13,753.44
  6. Step 6: Final answer
    x = 8,144.85

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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.