Home / 13,122.64-19,679.10-4,799.80

Finding the Fourth Proportional to 13,122.64, 19,679.10 and 4,799.80

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Solution

The fourth proportional to 13,122.64, 19,679.10 and 4,799.80 is: 7,197.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.64 : 19,679.10 = 4,799.80 : x
  2. Step 2: Convert to fraction form
    13,122.64/19,679.10 = 4,799.80/x
  3. Step 3: Cross multiply
    13,122.64x = 19,679.10 × 4,799.80
  4. Step 4: Simplify right side
    13,122.64x = 94,455,744.18
  5. Step 5: Solve for x
    x = 94,455,744.18/13,122.64
  6. Step 6: Final answer
    x = 7,197.92

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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.