Home / 9,135.30-13,705.20-2,561.40

Finding the Fourth Proportional to 9,135.30, 13,705.20 and 2,561.40

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Solution

The fourth proportional to 9,135.30, 13,705.20 and 2,561.40 is: 3,842.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.30 : 13,705.20 = 2,561.40 : x
  2. Step 2: Convert to fraction form
    9,135.30/13,705.20 = 2,561.40/x
  3. Step 3: Cross multiply
    9,135.30x = 13,705.20 × 2,561.40
  4. Step 4: Simplify right side
    9,135.30x = 35,104,499.28
  5. Step 5: Solve for x
    x = 35,104,499.28/9,135.30
  6. Step 6: Final answer
    x = 3,842.73

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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.