Home / 12,516.98-18,781.94-5,501.91

Finding the Fourth Proportional to 12,516.98, 18,781.94 and 5,501.91

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Solution

The fourth proportional to 12,516.98, 18,781.94 and 5,501.91 is: 8,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.98 : 18,781.94 = 5,501.91 : x
  2. Step 2: Convert to fraction form
    12,516.98/18,781.94 = 5,501.91/x
  3. Step 3: Cross multiply
    12,516.98x = 18,781.94 × 5,501.91
  4. Step 4: Simplify right side
    12,516.98x = 103,336,466.20
  5. Step 5: Solve for x
    x = 103,336,466.20/12,516.98
  6. Step 6: Final answer
    x = 8,255.70

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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.