Home / 15,200.68-20,977.38-8,486.19

Finding the Fourth Proportional to 15,200.68, 20,977.38 and 8,486.19

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Solution

The fourth proportional to 15,200.68, 20,977.38 and 8,486.19 is: 11,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,200.68 : 20,977.38 = 8,486.19 : x
  2. Step 2: Convert to fraction form
    15,200.68/20,977.38 = 8,486.19/x
  3. Step 3: Cross multiply
    15,200.68x = 20,977.38 × 8,486.19
  4. Step 4: Simplify right side
    15,200.68x = 178,018,032.38
  5. Step 5: Solve for x
    x = 178,018,032.38/15,200.68
  6. Step 6: Final answer
    x = 11,711.19

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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.