Home / 14,488.68-19,993.86-8,115.24

Finding the Fourth Proportional to 14,488.68, 19,993.86 and 8,115.24

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Solution

The fourth proportional to 14,488.68, 19,993.86 and 8,115.24 is: 11,198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488.68 : 19,993.86 = 8,115.24 : x
  2. Step 2: Convert to fraction form
    14,488.68/19,993.86 = 8,115.24/x
  3. Step 3: Cross multiply
    14,488.68x = 19,993.86 × 8,115.24
  4. Step 4: Simplify right side
    14,488.68x = 162,254,972.43
  5. Step 5: Solve for x
    x = 162,254,972.43/14,488.68
  6. Step 6: Final answer
    x = 11,198.74

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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.