Home / 9,115.71-13,673.56-2,876.35

Finding the Fourth Proportional to 9,115.71, 13,673.56 and 2,876.35

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Solution

The fourth proportional to 9,115.71, 13,673.56 and 2,876.35 is: 4,314.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.71 : 13,673.56 = 2,876.35 : x
  2. Step 2: Convert to fraction form
    9,115.71/13,673.56 = 2,876.35/x
  3. Step 3: Cross multiply
    9,115.71x = 13,673.56 × 2,876.35
  4. Step 4: Simplify right side
    9,115.71x = 39,329,933.96
  5. Step 5: Solve for x
    x = 39,329,933.96/9,115.71
  6. Step 6: Final answer
    x = 4,314.52

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1.5x scale

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.