Home / 13,916.25-19,205.10-8,249.76

Finding the Fourth Proportional to 13,916.25, 19,205.10 and 8,249.76

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Solution

The fourth proportional to 13,916.25, 19,205.10 and 8,249.76 is: 11,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.25 : 19,205.10 = 8,249.76 : x
  2. Step 2: Convert to fraction form
    13,916.25/19,205.10 = 8,249.76/x
  3. Step 3: Cross multiply
    13,916.25x = 19,205.10 × 8,249.76
  4. Step 4: Simplify right side
    13,916.25x = 158,437,465.78
  5. Step 5: Solve for x
    x = 158,437,465.78/13,916.25
  6. Step 6: Final answer
    x = 11,385.07

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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.