Home / 13,291.89-18,342.57-7,324.11

Finding the Fourth Proportional to 13,291.89, 18,342.57 and 7,324.11

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Solution

The fourth proportional to 13,291.89, 18,342.57 and 7,324.11 is: 10,107.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.89 : 18,342.57 = 7,324.11 : x
  2. Step 2: Convert to fraction form
    13,291.89/18,342.57 = 7,324.11/x
  3. Step 3: Cross multiply
    13,291.89x = 18,342.57 × 7,324.11
  4. Step 4: Simplify right side
    13,291.89x = 134,343,000.36
  5. Step 5: Solve for x
    x = 134,343,000.36/13,291.89
  6. Step 6: Final answer
    x = 10,107.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.