Home / 7,336.80-10,123.20-4,149.36

Finding the Fourth Proportional to 7,336.80, 10,123.20 and 4,149.36

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Solution

The fourth proportional to 7,336.80, 10,123.20 and 4,149.36 is: 5,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,336.80 : 10,123.20 = 4,149.36 : x
  2. Step 2: Convert to fraction form
    7,336.80/10,123.20 = 4,149.36/x
  3. Step 3: Cross multiply
    7,336.80x = 10,123.20 × 4,149.36
  4. Step 4: Simplify right side
    7,336.80x = 42,004,801.15
  5. Step 5: Solve for x
    x = 42,004,801.15/7,336.80
  6. Step 6: Final answer
    x = 5,725.22

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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.