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Finding the Fourth Proportional to 13,237.90, 19,864.14 and 8,863.90

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Solution

The fourth proportional to 13,237.90, 19,864.14 and 8,863.90 is: 13,300.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.90 : 19,864.14 = 8,863.90 : x
  2. Step 2: Convert to fraction form
    13,237.90/19,864.14 = 8,863.90/x
  3. Step 3: Cross multiply
    13,237.90x = 19,864.14 × 8,863.90
  4. Step 4: Simplify right side
    13,237.90x = 176,073,750.55
  5. Step 5: Solve for x
    x = 176,073,750.55/13,237.90
  6. Step 6: Final answer
    x = 13,300.73

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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.