Home / 10,286.55-15,448.65-9,419.04

Finding the Fourth Proportional to 10,286.55, 15,448.65 and 9,419.04

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Solution

The fourth proportional to 10,286.55, 15,448.65 and 9,419.04 is: 14,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.55 : 15,448.65 = 9,419.04 : x
  2. Step 2: Convert to fraction form
    10,286.55/15,448.65 = 9,419.04/x
  3. Step 3: Cross multiply
    10,286.55x = 15,448.65 × 9,419.04
  4. Step 4: Simplify right side
    10,286.55x = 145,511,452.30
  5. Step 5: Solve for x
    x = 145,511,452.30/10,286.55
  6. Step 6: Final answer
    x = 14,145.80

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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.