Home / 13,119.51-19,659.60-5,719.95

Finding the Fourth Proportional to 13,119.51, 19,659.60 and 5,719.95

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Solution

The fourth proportional to 13,119.51, 19,659.60 and 5,719.95 is: 8,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.51 : 19,659.60 = 5,719.95 : x
  2. Step 2: Convert to fraction form
    13,119.51/19,659.60 = 5,719.95/x
  3. Step 3: Cross multiply
    13,119.51x = 19,659.60 × 5,719.95
  4. Step 4: Simplify right side
    13,119.51x = 112,451,929.02
  5. Step 5: Solve for x
    x = 112,451,929.02/13,119.51
  6. Step 6: Final answer
    x = 8,571.35

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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.