Home / 7,481.12-10,323.96-4,123.84

Finding the Fourth Proportional to 7,481.12, 10,323.96 and 4,123.84

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Solution

The fourth proportional to 7,481.12, 10,323.96 and 4,123.84 is: 5,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.12 : 10,323.96 = 4,123.84 : x
  2. Step 2: Convert to fraction form
    7,481.12/10,323.96 = 4,123.84/x
  3. Step 3: Cross multiply
    7,481.12x = 10,323.96 × 4,123.84
  4. Step 4: Simplify right side
    7,481.12x = 42,574,359.21
  5. Step 5: Solve for x
    x = 42,574,359.21/7,481.12
  6. Step 6: Final answer
    x = 5,690.91

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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.