Home / 11,040.85-15,231.01-6,561.43

Finding the Fourth Proportional to 11,040.85, 15,231.01 and 6,561.43

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Solution

The fourth proportional to 11,040.85, 15,231.01 and 6,561.43 is: 9,051.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.85 : 15,231.01 = 6,561.43 : x
  2. Step 2: Convert to fraction form
    11,040.85/15,231.01 = 6,561.43/x
  3. Step 3: Cross multiply
    11,040.85x = 15,231.01 × 6,561.43
  4. Step 4: Simplify right side
    11,040.85x = 99,937,205.94
  5. Step 5: Solve for x
    x = 99,937,205.94/11,040.85
  6. Step 6: Final answer
    x = 9,051.59

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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.