Home / 12,516.69-18,781.96-5,126.34

Finding the Fourth Proportional to 12,516.69, 18,781.96 and 5,126.34

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Solution

The fourth proportional to 12,516.69, 18,781.96 and 5,126.34 is: 7,692.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.69 : 18,781.96 = 5,126.34 : x
  2. Step 2: Convert to fraction form
    12,516.69/18,781.96 = 5,126.34/x
  3. Step 3: Cross multiply
    12,516.69x = 18,781.96 × 5,126.34
  4. Step 4: Simplify right side
    12,516.69x = 96,282,674.41
  5. Step 5: Solve for x
    x = 96,282,674.41/12,516.69
  6. Step 6: Final answer
    x = 7,692.34

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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.