Home / 8,963.85-13,445.79-2,389.71

Finding the Fourth Proportional to 8,963.85, 13,445.79 and 2,389.71

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Solution

The fourth proportional to 8,963.85, 13,445.79 and 2,389.71 is: 3,584.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.85 : 13,445.79 = 2,389.71 : x
  2. Step 2: Convert to fraction form
    8,963.85/13,445.79 = 2,389.71/x
  3. Step 3: Cross multiply
    8,963.85x = 13,445.79 × 2,389.71
  4. Step 4: Simplify right side
    8,963.85x = 32,131,538.82
  5. Step 5: Solve for x
    x = 32,131,538.82/8,963.85
  6. Step 6: Final answer
    x = 3,584.57

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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.