Home / 9,115.48-13,675.05-2,876.45

Finding the Fourth Proportional to 9,115.48, 13,675.05 and 2,876.45

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Solution

The fourth proportional to 9,115.48, 13,675.05 and 2,876.45 is: 4,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.48 : 13,675.05 = 2,876.45 : x
  2. Step 2: Convert to fraction form
    9,115.48/13,675.05 = 2,876.45/x
  3. Step 3: Cross multiply
    9,115.48x = 13,675.05 × 2,876.45
  4. Step 4: Simplify right side
    9,115.48x = 39,335,631.76
  5. Step 5: Solve for x
    x = 39,335,631.76/9,115.48
  6. Step 6: Final answer
    x = 4,315.26

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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.