Home / 9,138.76-13,708.04-2,898.77

Finding the Fourth Proportional to 9,138.76, 13,708.04 and 2,898.77

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Solution

The fourth proportional to 9,138.76, 13,708.04 and 2,898.77 is: 4,348.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.76 : 13,708.04 = 2,898.77 : x
  2. Step 2: Convert to fraction form
    9,138.76/13,708.04 = 2,898.77/x
  3. Step 3: Cross multiply
    9,138.76x = 13,708.04 × 2,898.77
  4. Step 4: Simplify right side
    9,138.76x = 39,736,372.08
  5. Step 5: Solve for x
    x = 39,736,372.08/9,138.76
  6. Step 6: Final answer
    x = 4,348.12

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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.