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Finding the Fourth Proportional to 11,471.40, 17,207.10 and 9,612.45

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Solution

The fourth proportional to 11,471.40, 17,207.10 and 9,612.45 is: 14,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,471.40 : 17,207.10 = 9,612.45 : x
  2. Step 2: Convert to fraction form
    11,471.40/17,207.10 = 9,612.45/x
  3. Step 3: Cross multiply
    11,471.40x = 17,207.10 × 9,612.45
  4. Step 4: Simplify right side
    11,471.40x = 165,402,388.40
  5. Step 5: Solve for x
    x = 165,402,388.40/11,471.40
  6. Step 6: Final answer
    x = 14,418.68

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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.