Home / 10,918.51-15,067.55-6,203.70

Finding the Fourth Proportional to 10,918.51, 15,067.55 and 6,203.70

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Solution

The fourth proportional to 10,918.51, 15,067.55 and 6,203.70 is: 8,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.51 : 15,067.55 = 6,203.70 : x
  2. Step 2: Convert to fraction form
    10,918.51/15,067.55 = 6,203.70/x
  3. Step 3: Cross multiply
    10,918.51x = 15,067.55 × 6,203.70
  4. Step 4: Simplify right side
    10,918.51x = 93,474,575.44
  5. Step 5: Solve for x
    x = 93,474,575.44/10,918.51
  6. Step 6: Final answer
    x = 8,561.11

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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.