Home / 11,411.20-17,113.92-4,485.76

Finding the Fourth Proportional to 11,411.20, 17,113.92 and 4,485.76

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Solution

The fourth proportional to 11,411.20, 17,113.92 and 4,485.76 is: 6,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.20 : 17,113.92 = 4,485.76 : x
  2. Step 2: Convert to fraction form
    11,411.20/17,113.92 = 4,485.76/x
  3. Step 3: Cross multiply
    11,411.20x = 17,113.92 × 4,485.76
  4. Step 4: Simplify right side
    11,411.20x = 76,768,937.78
  5. Step 5: Solve for x
    x = 76,768,937.78/11,411.20
  6. Step 6: Final answer
    x = 6,727.51

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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.