Home / 11,357.33-15,672.03-8,374.78

Finding the Fourth Proportional to 11,357.33, 15,672.03 and 8,374.78

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Solution

The fourth proportional to 11,357.33, 15,672.03 and 8,374.78 is: 11,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,357.33 : 15,672.03 = 8,374.78 : x
  2. Step 2: Convert to fraction form
    11,357.33/15,672.03 = 8,374.78/x
  3. Step 3: Cross multiply
    11,357.33x = 15,672.03 × 8,374.78
  4. Step 4: Simplify right side
    11,357.33x = 131,249,803.40
  5. Step 5: Solve for x
    x = 131,249,803.40/11,357.33
  6. Step 6: Final answer
    x = 11,556.40

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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.