Home / 12,977.48-19,451.64-5,585.42

Finding the Fourth Proportional to 12,977.48, 19,451.64 and 5,585.42

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Solution

The fourth proportional to 12,977.48, 19,451.64 and 5,585.42 is: 8,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.48 : 19,451.64 = 5,585.42 : x
  2. Step 2: Convert to fraction form
    12,977.48/19,451.64 = 5,585.42/x
  3. Step 3: Cross multiply
    12,977.48x = 19,451.64 × 5,585.42
  4. Step 4: Simplify right side
    12,977.48x = 108,645,579.09
  5. Step 5: Solve for x
    x = 108,645,579.09/12,977.48
  6. Step 6: Final answer
    x = 8,371.85

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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.