Home / 15,617.96-21,550.66-9,329

Finding the Fourth Proportional to 15,617.96, 21,550.66 and 9,329

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Solution

The fourth proportional to 15,617.96, 21,550.66 and 9,329 is: 12,872.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.96 : 21,550.66 = 9,329 : x
  2. Step 2: Convert to fraction form
    15,617.96/21,550.66 = 9,329/x
  3. Step 3: Cross multiply
    15,617.96x = 21,550.66 × 9,329
  4. Step 4: Simplify right side
    15,617.96x = 201,046,107.14
  5. Step 5: Solve for x
    x = 201,046,107.14/15,617.96
  6. Step 6: Final answer
    x = 12,872.75

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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.