Home / 8,754.36-12,079.14-5,218.74

Finding the Fourth Proportional to 8,754.36, 12,079.14 and 5,218.74

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Solution

The fourth proportional to 8,754.36, 12,079.14 and 5,218.74 is: 7,200.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.36 : 12,079.14 = 5,218.74 : x
  2. Step 2: Convert to fraction form
    8,754.36/12,079.14 = 5,218.74/x
  3. Step 3: Cross multiply
    8,754.36x = 12,079.14 × 5,218.74
  4. Step 4: Simplify right side
    8,754.36x = 63,037,891.08
  5. Step 5: Solve for x
    x = 63,037,891.08/8,754.36
  6. Step 6: Final answer
    x = 7,200.74

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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.