Home / 11,116.78-15,302.19-10,067.02

Finding the Fourth Proportional to 11,116.78, 15,302.19 and 10,067.02

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Solution

The fourth proportional to 11,116.78, 15,302.19 and 10,067.02 is: 13,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.78 : 15,302.19 = 10,067.02 : x
  2. Step 2: Convert to fraction form
    11,116.78/15,302.19 = 10,067.02/x
  3. Step 3: Cross multiply
    11,116.78x = 15,302.19 × 10,067.02
  4. Step 4: Simplify right side
    11,116.78x = 154,047,452.77
  5. Step 5: Solve for x
    x = 154,047,452.77/11,116.78
  6. Step 6: Final answer
    x = 13,857.20

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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.