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Finding the Fourth Proportional to 9,681.86, 14,522.79 and 2,756.36

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Solution

The fourth proportional to 9,681.86, 14,522.79 and 2,756.36 is: 4,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,681.86 : 14,522.79 = 2,756.36 : x
  2. Step 2: Convert to fraction form
    9,681.86/14,522.79 = 2,756.36/x
  3. Step 3: Cross multiply
    9,681.86x = 14,522.79 × 2,756.36
  4. Step 4: Simplify right side
    9,681.86x = 40,030,073.75
  5. Step 5: Solve for x
    x = 40,030,073.75/9,681.86
  6. Step 6: Final answer
    x = 4,134.54

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Similar ratio
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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.