Home / 7,613.28-11,419.79-3,913.38

Finding the Fourth Proportional to 7,613.28, 11,419.79 and 3,913.38

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Solution

The fourth proportional to 7,613.28, 11,419.79 and 3,913.38 is: 5,870.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.28 : 11,419.79 = 3,913.38 : x
  2. Step 2: Convert to fraction form
    7,613.28/11,419.79 = 3,913.38/x
  3. Step 3: Cross multiply
    7,613.28x = 11,419.79 × 3,913.38
  4. Step 4: Simplify right side
    7,613.28x = 44,689,977.79
  5. Step 5: Solve for x
    x = 44,689,977.79/7,613.28
  6. Step 6: Final answer
    x = 5,870.00

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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.