Home / 12,866.11-19,305.65-5,080.39

Finding the Fourth Proportional to 12,866.11, 19,305.65 and 5,080.39

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Solution

The fourth proportional to 12,866.11, 19,305.65 and 5,080.39 is: 7,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.11 : 19,305.65 = 5,080.39 : x
  2. Step 2: Convert to fraction form
    12,866.11/19,305.65 = 5,080.39/x
  3. Step 3: Cross multiply
    12,866.11x = 19,305.65 × 5,080.39
  4. Step 4: Simplify right side
    12,866.11x = 98,080,231.20
  5. Step 5: Solve for x
    x = 98,080,231.20/12,866.11
  6. Step 6: Final answer
    x = 7,623.15

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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.