Home / 12,886.09-17,791.55-11,541.08

Finding the Fourth Proportional to 12,886.09, 17,791.55 and 11,541.08

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Solution

The fourth proportional to 12,886.09, 17,791.55 and 11,541.08 is: 15,934.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886.09 : 17,791.55 = 11,541.08 : x
  2. Step 2: Convert to fraction form
    12,886.09/17,791.55 = 11,541.08/x
  3. Step 3: Cross multiply
    12,886.09x = 17,791.55 × 11,541.08
  4. Step 4: Simplify right side
    12,886.09x = 205,333,731.93
  5. Step 5: Solve for x
    x = 205,333,731.93/12,886.09
  6. Step 6: Final answer
    x = 15,934.53

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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.