Home / 12,392.20-17,100.24-6,803.20

Finding the Fourth Proportional to 12,392.20, 17,100.24 and 6,803.20

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Solution

The fourth proportional to 12,392.20, 17,100.24 and 6,803.20 is: 9,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.20 : 17,100.24 = 6,803.20 : x
  2. Step 2: Convert to fraction form
    12,392.20/17,100.24 = 6,803.20/x
  3. Step 3: Cross multiply
    12,392.20x = 17,100.24 × 6,803.20
  4. Step 4: Simplify right side
    12,392.20x = 116,336,352.77
  5. Step 5: Solve for x
    x = 116,336,352.77/12,392.20
  6. Step 6: Final answer
    x = 9,387.87

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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.