Home / 11,698.20-16,138.26-7,724.16

Finding the Fourth Proportional to 11,698.20, 16,138.26 and 7,724.16

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Solution

The fourth proportional to 11,698.20, 16,138.26 and 7,724.16 is: 10,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,698.20 : 16,138.26 = 7,724.16 : x
  2. Step 2: Convert to fraction form
    11,698.20/16,138.26 = 7,724.16/x
  3. Step 3: Cross multiply
    11,698.20x = 16,138.26 × 7,724.16
  4. Step 4: Simplify right side
    11,698.20x = 124,654,502.36
  5. Step 5: Solve for x
    x = 124,654,502.36/11,698.20
  6. Step 6: Final answer
    x = 10,655.87

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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.