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Finding the Fourth Proportional to 14,735.80, 20,337.14 and 8,276.50

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Solution

The fourth proportional to 14,735.80, 20,337.14 and 8,276.50 is: 11,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,735.80 : 20,337.14 = 8,276.50 : x
  2. Step 2: Convert to fraction form
    14,735.80/20,337.14 = 8,276.50/x
  3. Step 3: Cross multiply
    14,735.80x = 20,337.14 × 8,276.50
  4. Step 4: Simplify right side
    14,735.80x = 168,320,339.21
  5. Step 5: Solve for x
    x = 168,320,339.21/14,735.80
  6. Step 6: Final answer
    x = 11,422.55

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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.