Home / 14,436.24-19,920.04-8,147.60

Finding the Fourth Proportional to 14,436.24, 19,920.04 and 8,147.60

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Solution

The fourth proportional to 14,436.24, 19,920.04 and 8,147.60 is: 11,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,436.24 : 19,920.04 = 8,147.60 : x
  2. Step 2: Convert to fraction form
    14,436.24/19,920.04 = 8,147.60/x
  3. Step 3: Cross multiply
    14,436.24x = 19,920.04 × 8,147.60
  4. Step 4: Simplify right side
    14,436.24x = 162,300,517.90
  5. Step 5: Solve for x
    x = 162,300,517.90/14,436.24
  6. Step 6: Final answer
    x = 11,242.58

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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.