Home / 18,788.36-28,170.28-6,136.56

Finding the Fourth Proportional to 18,788.36, 28,170.28 and 6,136.56

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Solution

The fourth proportional to 18,788.36, 28,170.28 and 6,136.56 is: 9,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.36 : 28,170.28 = 6,136.56 : x
  2. Step 2: Convert to fraction form
    18,788.36/28,170.28 = 6,136.56/x
  3. Step 3: Cross multiply
    18,788.36x = 28,170.28 × 6,136.56
  4. Step 4: Simplify right side
    18,788.36x = 172,868,621.11
  5. Step 5: Solve for x
    x = 172,868,621.11/18,788.36
  6. Step 6: Final answer
    x = 9,200.84

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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.