Home / 13,357.50-18,433.68-7,389.30

Finding the Fourth Proportional to 13,357.50, 18,433.68 and 7,389.30

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Solution

The fourth proportional to 13,357.50, 18,433.68 and 7,389.30 is: 10,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.50 : 18,433.68 = 7,389.30 : x
  2. Step 2: Convert to fraction form
    13,357.50/18,433.68 = 7,389.30/x
  3. Step 3: Cross multiply
    13,357.50x = 18,433.68 × 7,389.30
  4. Step 4: Simplify right side
    13,357.50x = 136,211,991.62
  5. Step 5: Solve for x
    x = 136,211,991.62/13,357.50
  6. Step 6: Final answer
    x = 10,197.42

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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.