Home / 11,308.80-15,606.08-6,272.88

Finding the Fourth Proportional to 11,308.80, 15,606.08 and 6,272.88

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Solution

The fourth proportional to 11,308.80, 15,606.08 and 6,272.88 is: 8,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.80 : 15,606.08 = 6,272.88 : x
  2. Step 2: Convert to fraction form
    11,308.80/15,606.08 = 6,272.88/x
  3. Step 3: Cross multiply
    11,308.80x = 15,606.08 × 6,272.88
  4. Step 4: Simplify right side
    11,308.80x = 97,895,067.11
  5. Step 5: Solve for x
    x = 97,895,067.11/11,308.80
  6. Step 6: Final answer
    x = 8,656.54

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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.