Home / 8,731.80-12,053.61-5,195.34

Finding the Fourth Proportional to 8,731.80, 12,053.61 and 5,195.34

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Solution

The fourth proportional to 8,731.80, 12,053.61 and 5,195.34 is: 7,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.80 : 12,053.61 = 5,195.34 : x
  2. Step 2: Convert to fraction form
    8,731.80/12,053.61 = 5,195.34/x
  3. Step 3: Cross multiply
    8,731.80x = 12,053.61 × 5,195.34
  4. Step 4: Simplify right side
    8,731.80x = 62,622,602.18
  5. Step 5: Solve for x
    x = 62,622,602.18/8,731.80
  6. Step 6: Final answer
    x = 7,171.79

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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.