Home / 13,251.33-18,277.25-9,416.79

Finding the Fourth Proportional to 13,251.33, 18,277.25 and 9,416.79

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Solution

The fourth proportional to 13,251.33, 18,277.25 and 9,416.79 is: 12,988.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.33 : 18,277.25 = 9,416.79 : x
  2. Step 2: Convert to fraction form
    13,251.33/18,277.25 = 9,416.79/x
  3. Step 3: Cross multiply
    13,251.33x = 18,277.25 × 9,416.79
  4. Step 4: Simplify right side
    13,251.33x = 172,112,977.94
  5. Step 5: Solve for x
    x = 172,112,977.94/13,251.33
  6. Step 6: Final answer
    x = 12,988.35

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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.