Home / 13,961.59-19,266.36-7,993.78

Finding the Fourth Proportional to 13,961.59, 19,266.36 and 7,993.78

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Solution

The fourth proportional to 13,961.59, 19,266.36 and 7,993.78 is: 11,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.59 : 19,266.36 = 7,993.78 : x
  2. Step 2: Convert to fraction form
    13,961.59/19,266.36 = 7,993.78/x
  3. Step 3: Cross multiply
    13,961.59x = 19,266.36 × 7,993.78
  4. Step 4: Simplify right side
    13,961.59x = 154,011,043.24
  5. Step 5: Solve for x
    x = 154,011,043.24/13,961.59
  6. Step 6: Final answer
    x = 11,031.05

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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.