Home / 11,451.20-17,254.81-9,416.78

Finding the Fourth Proportional to 11,451.20, 17,254.81 and 9,416.78

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Solution

The fourth proportional to 11,451.20, 17,254.81 and 9,416.78 is: 14,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.20 : 17,254.81 = 9,416.78 : x
  2. Step 2: Convert to fraction form
    11,451.20/17,254.81 = 9,416.78/x
  3. Step 3: Cross multiply
    11,451.20x = 17,254.81 × 9,416.78
  4. Step 4: Simplify right side
    11,451.20x = 162,484,616.35
  5. Step 5: Solve for x
    x = 162,484,616.35/11,451.20
  6. Step 6: Final answer
    x = 14,189.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.