Home / 7,305.40-10,968.90-5,123.80

Finding the Fourth Proportional to 7,305.40, 10,968.90 and 5,123.80

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Solution

The fourth proportional to 7,305.40, 10,968.90 and 5,123.80 is: 7,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.40 : 10,968.90 = 5,123.80 : x
  2. Step 2: Convert to fraction form
    7,305.40/10,968.90 = 5,123.80/x
  3. Step 3: Cross multiply
    7,305.40x = 10,968.90 × 5,123.80
  4. Step 4: Simplify right side
    7,305.40x = 56,202,449.82
  5. Step 5: Solve for x
    x = 56,202,449.82/7,305.40
  6. Step 6: Final answer
    x = 7,693.27

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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.