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Finding the Fourth Proportional to 13,252.50, 18,290.07 and 7,663.50

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Solution

The fourth proportional to 13,252.50, 18,290.07 and 7,663.50 is: 10,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.50 : 18,290.07 = 7,663.50 : x
  2. Step 2: Convert to fraction form
    13,252.50/18,290.07 = 7,663.50/x
  3. Step 3: Cross multiply
    13,252.50x = 18,290.07 × 7,663.50
  4. Step 4: Simplify right side
    13,252.50x = 140,165,951.45
  5. Step 5: Solve for x
    x = 140,165,951.45/13,252.50
  6. Step 6: Final answer
    x = 10,576.57

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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.