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Finding the Fourth Proportional to 8,814.11, 13,223.12 and 2,970.56

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Solution

The fourth proportional to 8,814.11, 13,223.12 and 2,970.56 is: 4,456.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.11 : 13,223.12 = 2,970.56 : x
  2. Step 2: Convert to fraction form
    8,814.11/13,223.12 = 2,970.56/x
  3. Step 3: Cross multiply
    8,814.11x = 13,223.12 × 2,970.56
  4. Step 4: Simplify right side
    8,814.11x = 39,280,089.55
  5. Step 5: Solve for x
    x = 39,280,089.55/8,814.11
  6. Step 6: Final answer
    x = 4,456.50

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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.