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Finding the Fourth Proportional to 8,971.80, 13,517.50 and 8,263.32

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Solution

The fourth proportional to 8,971.80, 13,517.50 and 8,263.32 is: 12,450.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.80 : 13,517.50 = 8,263.32 : x
  2. Step 2: Convert to fraction form
    8,971.80/13,517.50 = 8,263.32/x
  3. Step 3: Cross multiply
    8,971.80x = 13,517.50 × 8,263.32
  4. Step 4: Simplify right side
    8,971.80x = 111,699,428.10
  5. Step 5: Solve for x
    x = 111,699,428.10/8,971.80
  6. Step 6: Final answer
    x = 12,450.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.