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Finding the Fourth Proportional to 11,826.03, 16,319.71 and 6,448.55

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Solution

The fourth proportional to 11,826.03, 16,319.71 and 6,448.55 is: 8,898.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.03 : 16,319.71 = 6,448.55 : x
  2. Step 2: Convert to fraction form
    11,826.03/16,319.71 = 6,448.55/x
  3. Step 3: Cross multiply
    11,826.03x = 16,319.71 × 6,448.55
  4. Step 4: Simplify right side
    11,826.03x = 105,238,392.38
  5. Step 5: Solve for x
    x = 105,238,392.38/11,826.03
  6. Step 6: Final answer
    x = 8,898.87

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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.