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Finding the Fourth Proportional to 11,808.70, 17,713.05 and 9,184.30

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Solution

The fourth proportional to 11,808.70, 17,713.05 and 9,184.30 is: 13,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.70 : 17,713.05 = 9,184.30 : x
  2. Step 2: Convert to fraction form
    11,808.70/17,713.05 = 9,184.30/x
  3. Step 3: Cross multiply
    11,808.70x = 17,713.05 × 9,184.30
  4. Step 4: Simplify right side
    11,808.70x = 162,681,965.12
  5. Step 5: Solve for x
    x = 162,681,965.12/11,808.70
  6. Step 6: Final answer
    x = 13,776.45

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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.