Home / 8,789.06-12,127.02-5,205.14

Finding the Fourth Proportional to 8,789.06, 12,127.02 and 5,205.14

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Solution

The fourth proportional to 8,789.06, 12,127.02 and 5,205.14 is: 7,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.06 : 12,127.02 = 5,205.14 : x
  2. Step 2: Convert to fraction form
    8,789.06/12,127.02 = 5,205.14/x
  3. Step 3: Cross multiply
    8,789.06x = 12,127.02 × 5,205.14
  4. Step 4: Simplify right side
    8,789.06x = 63,122,836.88
  5. Step 5: Solve for x
    x = 63,122,836.88/8,789.06
  6. Step 6: Final answer
    x = 7,181.98

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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.