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Finding the Fourth Proportional to 14,867.70, 20,499.48 and 12,847.50

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Solution

The fourth proportional to 14,867.70, 20,499.48 and 12,847.50 is: 17,714.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,867.70 : 20,499.48 = 12,847.50 : x
  2. Step 2: Convert to fraction form
    14,867.70/20,499.48 = 12,847.50/x
  3. Step 3: Cross multiply
    14,867.70x = 20,499.48 × 12,847.50
  4. Step 4: Simplify right side
    14,867.70x = 263,367,069.30
  5. Step 5: Solve for x
    x = 263,367,069.30/14,867.70
  6. Step 6: Final answer
    x = 17,714.04

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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.