Home / 13,314.33-18,371.23-7,649.08

Finding the Fourth Proportional to 13,314.33, 18,371.23 and 7,649.08

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Solution

The fourth proportional to 13,314.33, 18,371.23 and 7,649.08 is: 10,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.33 : 18,371.23 = 7,649.08 : x
  2. Step 2: Convert to fraction form
    13,314.33/18,371.23 = 7,649.08/x
  3. Step 3: Cross multiply
    13,314.33x = 18,371.23 × 7,649.08
  4. Step 4: Simplify right side
    13,314.33x = 140,522,942.92
  5. Step 5: Solve for x
    x = 140,522,942.92/13,314.33
  6. Step 6: Final answer
    x = 10,554.26

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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.