Home / 9,172.80-13,766.40-4,243.05

Finding the Fourth Proportional to 9,172.80, 13,766.40 and 4,243.05

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Solution

The fourth proportional to 9,172.80, 13,766.40 and 4,243.05 is: 6,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.80 : 13,766.40 = 4,243.05 : x
  2. Step 2: Convert to fraction form
    9,172.80/13,766.40 = 4,243.05/x
  3. Step 3: Cross multiply
    9,172.80x = 13,766.40 × 4,243.05
  4. Step 4: Simplify right side
    9,172.80x = 58,411,523.52
  5. Step 5: Solve for x
    x = 58,411,523.52/9,172.80
  6. Step 6: Final answer
    x = 6,367.91

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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.