Home / 13,164.12-18,166.68-8,916.48

Finding the Fourth Proportional to 13,164.12, 18,166.68 and 8,916.48

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Solution

The fourth proportional to 13,164.12, 18,166.68 and 8,916.48 is: 12,304.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.12 : 18,166.68 = 8,916.48 : x
  2. Step 2: Convert to fraction form
    13,164.12/18,166.68 = 8,916.48/x
  3. Step 3: Cross multiply
    13,164.12x = 18,166.68 × 8,916.48
  4. Step 4: Simplify right side
    13,164.12x = 161,982,838.89
  5. Step 5: Solve for x
    x = 161,982,838.89/13,164.12
  6. Step 6: Final answer
    x = 12,304.87

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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.