Home / 7,672.18-11,516.81-3,973.42

Finding the Fourth Proportional to 7,672.18, 11,516.81 and 3,973.42

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Solution

The fourth proportional to 7,672.18, 11,516.81 and 3,973.42 is: 5,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.18 : 11,516.81 = 3,973.42 : x
  2. Step 2: Convert to fraction form
    7,672.18/11,516.81 = 3,973.42/x
  3. Step 3: Cross multiply
    7,672.18x = 11,516.81 × 3,973.42
  4. Step 4: Simplify right side
    7,672.18x = 45,761,123.19
  5. Step 5: Solve for x
    x = 45,761,123.19/7,672.18
  6. Step 6: Final answer
    x = 5,964.55

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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.