Home / 12,963.87-19,434.47-11,002.19

Finding the Fourth Proportional to 12,963.87, 19,434.47 and 11,002.19

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Solution

The fourth proportional to 12,963.87, 19,434.47 and 11,002.19 is: 16,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.87 : 19,434.47 = 11,002.19 : x
  2. Step 2: Convert to fraction form
    12,963.87/19,434.47 = 11,002.19/x
  3. Step 3: Cross multiply
    12,963.87x = 19,434.47 × 11,002.19
  4. Step 4: Simplify right side
    12,963.87x = 213,821,579.31
  5. Step 5: Solve for x
    x = 213,821,579.31/12,963.87
  6. Step 6: Final answer
    x = 16,493.65

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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.