Home / 15,203.05-20,974.23-8,828.55

Finding the Fourth Proportional to 15,203.05, 20,974.23 and 8,828.55

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Solution

The fourth proportional to 15,203.05, 20,974.23 and 8,828.55 is: 12,179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203.05 : 20,974.23 = 8,828.55 : x
  2. Step 2: Convert to fraction form
    15,203.05/20,974.23 = 8,828.55/x
  3. Step 3: Cross multiply
    15,203.05x = 20,974.23 × 8,828.55
  4. Step 4: Simplify right side
    15,203.05x = 185,172,038.27
  5. Step 5: Solve for x
    x = 185,172,038.27/15,203.05
  6. Step 6: Final answer
    x = 12,179.93

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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.