Home / 10,812.54-16,220.39-3,417.55

Finding the Fourth Proportional to 10,812.54, 16,220.39 and 3,417.55

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Solution

The fourth proportional to 10,812.54, 16,220.39 and 3,417.55 is: 5,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.54 : 16,220.39 = 3,417.55 : x
  2. Step 2: Convert to fraction form
    10,812.54/16,220.39 = 3,417.55/x
  3. Step 3: Cross multiply
    10,812.54x = 16,220.39 × 3,417.55
  4. Step 4: Simplify right side
    10,812.54x = 55,433,993.84
  5. Step 5: Solve for x
    x = 55,433,993.84/10,812.54
  6. Step 6: Final answer
    x = 5,126.82

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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.