Home / 12,882.36-17,779.30-7,577.66

Finding the Fourth Proportional to 12,882.36, 17,779.30 and 7,577.66

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Solution

The fourth proportional to 12,882.36, 17,779.30 and 7,577.66 is: 10,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.36 : 17,779.30 = 7,577.66 : x
  2. Step 2: Convert to fraction form
    12,882.36/17,779.30 = 7,577.66/x
  3. Step 3: Cross multiply
    12,882.36x = 17,779.30 × 7,577.66
  4. Step 4: Simplify right side
    12,882.36x = 134,725,490.44
  5. Step 5: Solve for x
    x = 134,725,490.44/12,882.36
  6. Step 6: Final answer
    x = 10,458.14

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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.