Home / 13,719.40-20,578.63-5,816.83

Finding the Fourth Proportional to 13,719.40, 20,578.63 and 5,816.83

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Solution

The fourth proportional to 13,719.40, 20,578.63 and 5,816.83 is: 8,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.40 : 20,578.63 = 5,816.83 : x
  2. Step 2: Convert to fraction form
    13,719.40/20,578.63 = 5,816.83/x
  3. Step 3: Cross multiply
    13,719.40x = 20,578.63 × 5,816.83
  4. Step 4: Simplify right side
    13,719.40x = 119,702,326.35
  5. Step 5: Solve for x
    x = 119,702,326.35/13,719.40
  6. Step 6: Final answer
    x = 8,725.04

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1.5x scale

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.