Home / 18,139.31-27,214.85-8,898.83

Finding the Fourth Proportional to 18,139.31, 27,214.85 and 8,898.83

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Solution

The fourth proportional to 18,139.31, 27,214.85 and 8,898.83 is: 13,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.31 : 27,214.85 = 8,898.83 : x
  2. Step 2: Convert to fraction form
    18,139.31/27,214.85 = 8,898.83/x
  3. Step 3: Cross multiply
    18,139.31x = 27,214.85 × 8,898.83
  4. Step 4: Simplify right side
    18,139.31x = 242,180,323.63
  5. Step 5: Solve for x
    x = 242,180,323.63/18,139.31
  6. Step 6: Final answer
    x = 13,351.13

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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.