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Finding the Fourth Proportional to 8,900.88, 13,365.21 and 8,506.53

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Solution

The fourth proportional to 8,900.88, 13,365.21 and 8,506.53 is: 12,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.88 : 13,365.21 = 8,506.53 : x
  2. Step 2: Convert to fraction form
    8,900.88/13,365.21 = 8,506.53/x
  3. Step 3: Cross multiply
    8,900.88x = 13,365.21 × 8,506.53
  4. Step 4: Simplify right side
    8,900.88x = 113,691,559.82
  5. Step 5: Solve for x
    x = 113,691,559.82/8,900.88
  6. Step 6: Final answer
    x = 12,773.07

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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.