Home / 10,895.58-15,039.07-7,119.30

Finding the Fourth Proportional to 10,895.58, 15,039.07 and 7,119.30

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Solution

The fourth proportional to 10,895.58, 15,039.07 and 7,119.30 is: 9,826.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,895.58 : 15,039.07 = 7,119.30 : x
  2. Step 2: Convert to fraction form
    10,895.58/15,039.07 = 7,119.30/x
  3. Step 3: Cross multiply
    10,895.58x = 15,039.07 × 7,119.30
  4. Step 4: Simplify right side
    10,895.58x = 107,067,651.05
  5. Step 5: Solve for x
    x = 107,067,651.05/10,895.58
  6. Step 6: Final answer
    x = 9,826.71

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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.