Home / 12,085.80-18,134.10-5,508.60

Finding the Fourth Proportional to 12,085.80, 18,134.10 and 5,508.60

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Solution

The fourth proportional to 12,085.80, 18,134.10 and 5,508.60 is: 8,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.80 : 18,134.10 = 5,508.60 : x
  2. Step 2: Convert to fraction form
    12,085.80/18,134.10 = 5,508.60/x
  3. Step 3: Cross multiply
    12,085.80x = 18,134.10 × 5,508.60
  4. Step 4: Simplify right side
    12,085.80x = 99,893,503.26
  5. Step 5: Solve for x
    x = 99,893,503.26/12,085.80
  6. Step 6: Final answer
    x = 8,265.36

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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.