Home / 13,632.55-18,812.60-8,916.73

Finding the Fourth Proportional to 13,632.55, 18,812.60 and 8,916.73

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Solution

The fourth proportional to 13,632.55, 18,812.60 and 8,916.73 is: 12,304.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.55 : 18,812.60 = 8,916.73 : x
  2. Step 2: Convert to fraction form
    13,632.55/18,812.60 = 8,916.73/x
  3. Step 3: Cross multiply
    13,632.55x = 18,812.60 × 8,916.73
  4. Step 4: Simplify right side
    13,632.55x = 167,746,830.21
  5. Step 5: Solve for x
    x = 167,746,830.21/13,632.55
  6. Step 6: Final answer
    x = 12,304.88

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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.