Home / 11,141.12-15,386.40-7,613.44

Finding the Fourth Proportional to 11,141.12, 15,386.40 and 7,613.44

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Solution

The fourth proportional to 11,141.12, 15,386.40 and 7,613.44 is: 10,514.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.12 : 15,386.40 = 7,613.44 : x
  2. Step 2: Convert to fraction form
    11,141.12/15,386.40 = 7,613.44/x
  3. Step 3: Cross multiply
    11,141.12x = 15,386.40 × 7,613.44
  4. Step 4: Simplify right side
    11,141.12x = 117,143,433.22
  5. Step 5: Solve for x
    x = 117,143,433.22/11,141.12
  6. Step 6: Final answer
    x = 10,514.51

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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.