Home / 12,306.72-18,455.76-4,913.04

Finding the Fourth Proportional to 12,306.72, 18,455.76 and 4,913.04

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Solution

The fourth proportional to 12,306.72, 18,455.76 and 4,913.04 is: 7,367.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.72 : 18,455.76 = 4,913.04 : x
  2. Step 2: Convert to fraction form
    12,306.72/18,455.76 = 4,913.04/x
  3. Step 3: Cross multiply
    12,306.72x = 18,455.76 × 4,913.04
  4. Step 4: Simplify right side
    12,306.72x = 90,673,887.11
  5. Step 5: Solve for x
    x = 90,673,887.11/12,306.72
  6. Step 6: Final answer
    x = 7,367.84

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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.