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Finding the Fourth Proportional to 11,670.45, 17,491.08 and 4,642.89

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Solution

The fourth proportional to 11,670.45, 17,491.08 and 4,642.89 is: 6,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,670.45 : 17,491.08 = 4,642.89 : x
  2. Step 2: Convert to fraction form
    11,670.45/17,491.08 = 4,642.89/x
  3. Step 3: Cross multiply
    11,670.45x = 17,491.08 × 4,642.89
  4. Step 4: Simplify right side
    11,670.45x = 81,209,160.42
  5. Step 5: Solve for x
    x = 81,209,160.42/11,670.45
  6. Step 6: Final answer
    x = 6,958.53

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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.