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Finding the Fourth Proportional to 14,488.60, 19,999.02 and 8,519.98

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Solution

The fourth proportional to 14,488.60, 19,999.02 and 8,519.98 is: 11,760.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488.60 : 19,999.02 = 8,519.98 : x
  2. Step 2: Convert to fraction form
    14,488.60/19,999.02 = 8,519.98/x
  3. Step 3: Cross multiply
    14,488.60x = 19,999.02 × 8,519.98
  4. Step 4: Simplify right side
    14,488.60x = 170,391,250.42
  5. Step 5: Solve for x
    x = 170,391,250.42/14,488.60
  6. Step 6: Final answer
    x = 11,760.37

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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.