Home / 13,449.84-20,148.76-6,529.20

Finding the Fourth Proportional to 13,449.84, 20,148.76 and 6,529.20

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Solution

The fourth proportional to 13,449.84, 20,148.76 and 6,529.20 is: 9,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.84 : 20,148.76 = 6,529.20 : x
  2. Step 2: Convert to fraction form
    13,449.84/20,148.76 = 6,529.20/x
  3. Step 3: Cross multiply
    13,449.84x = 20,148.76 × 6,529.20
  4. Step 4: Simplify right side
    13,449.84x = 131,555,283.79
  5. Step 5: Solve for x
    x = 131,555,283.79/13,449.84
  6. Step 6: Final answer
    x = 9,781.18

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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.