Home / 9,112.93-13,669.40-2,187.43

Finding the Fourth Proportional to 9,112.93, 13,669.40 and 2,187.43

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Solution

The fourth proportional to 9,112.93, 13,669.40 and 2,187.43 is: 3,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.93 : 13,669.40 = 2,187.43 : x
  2. Step 2: Convert to fraction form
    9,112.93/13,669.40 = 2,187.43/x
  3. Step 3: Cross multiply
    9,112.93x = 13,669.40 × 2,187.43
  4. Step 4: Simplify right side
    9,112.93x = 29,900,887.08
  5. Step 5: Solve for x
    x = 29,900,887.08/9,112.93
  6. Step 6: Final answer
    x = 3,281.15

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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.