Home / 10,919.53-15,078.41-10,359.03

Finding the Fourth Proportional to 10,919.53, 15,078.41 and 10,359.03

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Solution

The fourth proportional to 10,919.53, 15,078.41 and 10,359.03 is: 14,304.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.53 : 15,078.41 = 10,359.03 : x
  2. Step 2: Convert to fraction form
    10,919.53/15,078.41 = 10,359.03/x
  3. Step 3: Cross multiply
    10,919.53x = 15,078.41 × 10,359.03
  4. Step 4: Simplify right side
    10,919.53x = 156,197,701.54
  5. Step 5: Solve for x
    x = 156,197,701.54/10,919.53
  6. Step 6: Final answer
    x = 14,304.43

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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.