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Finding the Fourth Proportional to 11,463.59, 17,191.88 and 7,928.45

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Solution

The fourth proportional to 11,463.59, 17,191.88 and 7,928.45 is: 11,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,463.59 : 17,191.88 = 7,928.45 : x
  2. Step 2: Convert to fraction form
    11,463.59/17,191.88 = 7,928.45/x
  3. Step 3: Cross multiply
    11,463.59x = 17,191.88 × 7,928.45
  4. Step 4: Simplify right side
    11,463.59x = 136,304,929.59
  5. Step 5: Solve for x
    x = 136,304,929.59/11,463.59
  6. Step 6: Final answer
    x = 11,890.25

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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.