Home / 13,898.38-19,182.74-8,861.44

Finding the Fourth Proportional to 13,898.38, 19,182.74 and 8,861.44

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Solution

The fourth proportional to 13,898.38, 19,182.74 and 8,861.44 is: 12,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.38 : 19,182.74 = 8,861.44 : x
  2. Step 2: Convert to fraction form
    13,898.38/19,182.74 = 8,861.44/x
  3. Step 3: Cross multiply
    13,898.38x = 19,182.74 × 8,861.44
  4. Step 4: Simplify right side
    13,898.38x = 169,986,699.55
  5. Step 5: Solve for x
    x = 169,986,699.55/13,898.38
  6. Step 6: Final answer
    x = 12,230.68

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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.