Home / 10,811.39-16,219.10-3,417.71

Finding the Fourth Proportional to 10,811.39, 16,219.10 and 3,417.71

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Solution

The fourth proportional to 10,811.39, 16,219.10 and 3,417.71 is: 5,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.39 : 16,219.10 = 3,417.71 : x
  2. Step 2: Convert to fraction form
    10,811.39/16,219.10 = 3,417.71/x
  3. Step 3: Cross multiply
    10,811.39x = 16,219.10 × 3,417.71
  4. Step 4: Simplify right side
    10,811.39x = 55,432,107.71
  5. Step 5: Solve for x
    x = 55,432,107.71/10,811.39
  6. Step 6: Final answer
    x = 5,127.20

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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.