Home / 10,660.33-15,987.72-4,422.11

Finding the Fourth Proportional to 10,660.33, 15,987.72 and 4,422.11

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Solution

The fourth proportional to 10,660.33, 15,987.72 and 4,422.11 is: 6,632.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.33 : 15,987.72 = 4,422.11 : x
  2. Step 2: Convert to fraction form
    10,660.33/15,987.72 = 4,422.11/x
  3. Step 3: Cross multiply
    10,660.33x = 15,987.72 × 4,422.11
  4. Step 4: Simplify right side
    10,660.33x = 70,699,456.49
  5. Step 5: Solve for x
    x = 70,699,456.49/10,660.33
  6. Step 6: Final answer
    x = 6,632.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.