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Finding the Fourth Proportional to 8,975.67, 13,463.47 and 7,408.90

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Solution

The fourth proportional to 8,975.67, 13,463.47 and 7,408.90 is: 11,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.67 : 13,463.47 = 7,408.90 : x
  2. Step 2: Convert to fraction form
    8,975.67/13,463.47 = 7,408.90/x
  3. Step 3: Cross multiply
    8,975.67x = 13,463.47 × 7,408.90
  4. Step 4: Simplify right side
    8,975.67x = 99,749,502.88
  5. Step 5: Solve for x
    x = 99,749,502.88/8,975.67
  6. Step 6: Final answer
    x = 11,113.32

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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.