Home / 12,919.08-19,358.46-10,321.32

Finding the Fourth Proportional to 12,919.08, 19,358.46 and 10,321.32

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Solution

The fourth proportional to 12,919.08, 19,358.46 and 10,321.32 is: 15,465.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.08 : 19,358.46 = 10,321.32 : x
  2. Step 2: Convert to fraction form
    12,919.08/19,358.46 = 10,321.32/x
  3. Step 3: Cross multiply
    12,919.08x = 19,358.46 × 10,321.32
  4. Step 4: Simplify right side
    12,919.08x = 199,804,860.37
  5. Step 5: Solve for x
    x = 199,804,860.37/12,919.08
  6. Step 6: Final answer
    x = 15,465.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.