Home / 18,611.28-27,920.34-6,132.04

Finding the Fourth Proportional to 18,611.28, 27,920.34 and 6,132.04

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Solution

The fourth proportional to 18,611.28, 27,920.34 and 6,132.04 is: 9,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.28 : 27,920.34 = 6,132.04 : x
  2. Step 2: Convert to fraction form
    18,611.28/27,920.34 = 6,132.04/x
  3. Step 3: Cross multiply
    18,611.28x = 27,920.34 × 6,132.04
  4. Step 4: Simplify right side
    18,611.28x = 171,208,641.69
  5. Step 5: Solve for x
    x = 171,208,641.69/18,611.28
  6. Step 6: Final answer
    x = 9,199.19

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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.