Home / 13,719.35-20,579.75-4,360.10

Finding the Fourth Proportional to 13,719.35, 20,579.75 and 4,360.10

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Solution

The fourth proportional to 13,719.35, 20,579.75 and 4,360.10 is: 6,540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.35 : 20,579.75 = 4,360.10 : x
  2. Step 2: Convert to fraction form
    13,719.35/20,579.75 = 4,360.10/x
  3. Step 3: Cross multiply
    13,719.35x = 20,579.75 × 4,360.10
  4. Step 4: Simplify right side
    13,719.35x = 89,729,643.28
  5. Step 5: Solve for x
    x = 89,729,643.28/13,719.35
  6. Step 6: Final answer
    x = 6,540.37

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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.