Home / 12,187.31-18,277.24-5,167.19

Finding the Fourth Proportional to 12,187.31, 18,277.24 and 5,167.19

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Solution

The fourth proportional to 12,187.31, 18,277.24 and 5,167.19 is: 7,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.31 : 18,277.24 = 5,167.19 : x
  2. Step 2: Convert to fraction form
    12,187.31/18,277.24 = 5,167.19/x
  3. Step 3: Cross multiply
    12,187.31x = 18,277.24 × 5,167.19
  4. Step 4: Simplify right side
    12,187.31x = 94,441,971.76
  5. Step 5: Solve for x
    x = 94,441,971.76/12,187.31
  6. Step 6: Final answer
    x = 7,749.21

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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.