Home / 10,812.60-16,222.10-3,416.76

Finding the Fourth Proportional to 10,812.60, 16,222.10 and 3,416.76

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Solution

The fourth proportional to 10,812.60, 16,222.10 and 3,416.76 is: 5,126.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.60 : 16,222.10 = 3,416.76 : x
  2. Step 2: Convert to fraction form
    10,812.60/16,222.10 = 3,416.76/x
  3. Step 3: Cross multiply
    10,812.60x = 16,222.10 × 3,416.76
  4. Step 4: Simplify right side
    10,812.60x = 55,427,022.40
  5. Step 5: Solve for x
    x = 55,427,022.40/10,812.60
  6. Step 6: Final answer
    x = 5,126.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.