Home / 9,079.68-12,529.96-5,100.80

Finding the Fourth Proportional to 9,079.68, 12,529.96 and 5,100.80

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Solution

The fourth proportional to 9,079.68, 12,529.96 and 5,100.80 is: 7,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.68 : 12,529.96 = 5,100.80 : x
  2. Step 2: Convert to fraction form
    9,079.68/12,529.96 = 5,100.80/x
  3. Step 3: Cross multiply
    9,079.68x = 12,529.96 × 5,100.80
  4. Step 4: Simplify right side
    9,079.68x = 63,912,819.97
  5. Step 5: Solve for x
    x = 63,912,819.97/9,079.68
  6. Step 6: Final answer
    x = 7,039.10

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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.