Home / 7,436.80-11,137.92-5,685.04

Finding the Fourth Proportional to 7,436.80, 11,137.92 and 5,685.04

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Solution

The fourth proportional to 7,436.80, 11,137.92 and 5,685.04 is: 8,514.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,436.80 : 11,137.92 = 5,685.04 : x
  2. Step 2: Convert to fraction form
    7,436.80/11,137.92 = 5,685.04/x
  3. Step 3: Cross multiply
    7,436.80x = 11,137.92 × 5,685.04
  4. Step 4: Simplify right side
    7,436.80x = 63,319,520.72
  5. Step 5: Solve for x
    x = 63,319,520.72/7,436.80
  6. Step 6: Final answer
    x = 8,514.35

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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.