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Finding the Fourth Proportional to 6,663.51, 9,191.21 and 4,008.14

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Solution

The fourth proportional to 6,663.51, 9,191.21 and 4,008.14 is: 5,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.51 : 9,191.21 = 4,008.14 : x
  2. Step 2: Convert to fraction form
    6,663.51/9,191.21 = 4,008.14/x
  3. Step 3: Cross multiply
    6,663.51x = 9,191.21 × 4,008.14
  4. Step 4: Simplify right side
    6,663.51x = 36,839,590.45
  5. Step 5: Solve for x
    x = 36,839,590.45/6,663.51
  6. Step 6: Final answer
    x = 5,528.56

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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.