Home / 10,938.60-15,096.18-8,943.54

Finding the Fourth Proportional to 10,938.60, 15,096.18 and 8,943.54

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Solution

The fourth proportional to 10,938.60, 15,096.18 and 8,943.54 is: 12,342.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.60 : 15,096.18 = 8,943.54 : x
  2. Step 2: Convert to fraction form
    10,938.60/15,096.18 = 8,943.54/x
  3. Step 3: Cross multiply
    10,938.60x = 15,096.18 × 8,943.54
  4. Step 4: Simplify right side
    10,938.60x = 135,013,289.68
  5. Step 5: Solve for x
    x = 135,013,289.68/10,938.60
  6. Step 6: Final answer
    x = 12,342.83

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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.