Home / 12,189.57-18,291.66-5,264.07

Finding the Fourth Proportional to 12,189.57, 18,291.66 and 5,264.07

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Solution

The fourth proportional to 12,189.57, 18,291.66 and 5,264.07 is: 7,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189.57 : 18,291.66 = 5,264.07 : x
  2. Step 2: Convert to fraction form
    12,189.57/18,291.66 = 5,264.07/x
  3. Step 3: Cross multiply
    12,189.57x = 18,291.66 × 5,264.07
  4. Step 4: Simplify right side
    12,189.57x = 96,288,578.66
  5. Step 5: Solve for x
    x = 96,288,578.66/12,189.57
  6. Step 6: Final answer
    x = 7,899.26

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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.