Home / 13,756.32-20,620.35-5,432.96

Finding the Fourth Proportional to 13,756.32, 20,620.35 and 5,432.96

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Solution

The fourth proportional to 13,756.32, 20,620.35 and 5,432.96 is: 8,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.32 : 20,620.35 = 5,432.96 : x
  2. Step 2: Convert to fraction form
    13,756.32/20,620.35 = 5,432.96/x
  3. Step 3: Cross multiply
    13,756.32x = 20,620.35 × 5,432.96
  4. Step 4: Simplify right side
    13,756.32x = 112,029,536.74
  5. Step 5: Solve for x
    x = 112,029,536.74/13,756.32
  6. Step 6: Final answer
    x = 8,143.86

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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.