Home / 12,072.11-18,113.16-6,518.93

Finding the Fourth Proportional to 12,072.11, 18,113.16 and 6,518.93

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Solution

The fourth proportional to 12,072.11, 18,113.16 and 6,518.93 is: 9,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.11 : 18,113.16 = 6,518.93 : x
  2. Step 2: Convert to fraction form
    12,072.11/18,113.16 = 6,518.93/x
  3. Step 3: Cross multiply
    12,072.11x = 18,113.16 × 6,518.93
  4. Step 4: Simplify right side
    12,072.11x = 118,078,331.55
  5. Step 5: Solve for x
    x = 118,078,331.55/12,072.11
  6. Step 6: Final answer
    x = 9,781.09

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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.