Home / 13,291.80-19,937.70-9,144.60

Finding the Fourth Proportional to 13,291.80, 19,937.70 and 9,144.60

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Solution

The fourth proportional to 13,291.80, 19,937.70 and 9,144.60 is: 13,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.80 : 19,937.70 = 9,144.60 : x
  2. Step 2: Convert to fraction form
    13,291.80/19,937.70 = 9,144.60/x
  3. Step 3: Cross multiply
    13,291.80x = 19,937.70 × 9,144.60
  4. Step 4: Simplify right side
    13,291.80x = 182,322,291.42
  5. Step 5: Solve for x
    x = 182,322,291.42/13,291.80
  6. Step 6: Final answer
    x = 13,716.90

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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.