Home / 13,109.88-19,763.64-12,264.24

Finding the Fourth Proportional to 13,109.88, 19,763.64 and 12,264.24

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Solution

The fourth proportional to 13,109.88, 19,763.64 and 12,264.24 is: 18,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.88 : 19,763.64 = 12,264.24 : x
  2. Step 2: Convert to fraction form
    13,109.88/19,763.64 = 12,264.24/x
  3. Step 3: Cross multiply
    13,109.88x = 19,763.64 × 12,264.24
  4. Step 4: Simplify right side
    13,109.88x = 242,385,922.97
  5. Step 5: Solve for x
    x = 242,385,922.97/13,109.88
  6. Step 6: Final answer
    x = 18,488.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.