Home / 16,391.17-22,618.65-9,676.45

Finding the Fourth Proportional to 16,391.17, 22,618.65 and 9,676.45

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Solution

The fourth proportional to 16,391.17, 22,618.65 and 9,676.45 is: 13,352.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.17 : 22,618.65 = 9,676.45 : x
  2. Step 2: Convert to fraction form
    16,391.17/22,618.65 = 9,676.45/x
  3. Step 3: Cross multiply
    16,391.17x = 22,618.65 × 9,676.45
  4. Step 4: Simplify right side
    16,391.17x = 218,868,235.79
  5. Step 5: Solve for x
    x = 218,868,235.79/16,391.17
  6. Step 6: Final answer
    x = 13,352.81

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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.