Home / 14,288.60-19,716.80-8,239.52

Finding the Fourth Proportional to 14,288.60, 19,716.80 and 8,239.52

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Solution

The fourth proportional to 14,288.60, 19,716.80 and 8,239.52 is: 11,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.60 : 19,716.80 = 8,239.52 : x
  2. Step 2: Convert to fraction form
    14,288.60/19,716.80 = 8,239.52/x
  3. Step 3: Cross multiply
    14,288.60x = 19,716.80 × 8,239.52
  4. Step 4: Simplify right side
    14,288.60x = 162,456,967.94
  5. Step 5: Solve for x
    x = 162,456,967.94/14,288.60
  6. Step 6: Final answer
    x = 11,369.69

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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.