Home / 18,488.26-25,491.47-12,827.85

Finding the Fourth Proportional to 18,488.26, 25,491.47 and 12,827.85

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Solution

The fourth proportional to 18,488.26, 25,491.47 and 12,827.85 is: 17,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.26 : 25,491.47 = 12,827.85 : x
  2. Step 2: Convert to fraction form
    18,488.26/25,491.47 = 12,827.85/x
  3. Step 3: Cross multiply
    18,488.26x = 25,491.47 × 12,827.85
  4. Step 4: Simplify right side
    18,488.26x = 327,000,753.44
  5. Step 5: Solve for x
    x = 327,000,753.44/18,488.26
  6. Step 6: Final answer
    x = 17,686.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.