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Finding the Fourth Proportional to 7,679.67, 10,572.35 and 7,327.02

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Solution

The fourth proportional to 7,679.67, 10,572.35 and 7,327.02 is: 10,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.67 : 10,572.35 = 7,327.02 : x
  2. Step 2: Convert to fraction form
    7,679.67/10,572.35 = 7,327.02/x
  3. Step 3: Cross multiply
    7,679.67x = 10,572.35 × 7,327.02
  4. Step 4: Simplify right side
    7,679.67x = 77,463,783.26
  5. Step 5: Solve for x
    x = 77,463,783.26/7,679.67
  6. Step 6: Final answer
    x = 10,086.86

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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.