Home / 13,297.40-18,351.20-7,329.08

Finding the Fourth Proportional to 13,297.40, 18,351.20 and 7,329.08

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Solution

The fourth proportional to 13,297.40, 18,351.20 and 7,329.08 is: 10,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.40 : 18,351.20 = 7,329.08 : x
  2. Step 2: Convert to fraction form
    13,297.40/18,351.20 = 7,329.08/x
  3. Step 3: Cross multiply
    13,297.40x = 18,351.20 × 7,329.08
  4. Step 4: Simplify right side
    13,297.40x = 134,497,412.90
  5. Step 5: Solve for x
    x = 134,497,412.90/13,297.40
  6. Step 6: Final answer
    x = 10,114.56

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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.