Home / 13,719.96-20,580.66-4,360.68

Finding the Fourth Proportional to 13,719.96, 20,580.66 and 4,360.68

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Solution

The fourth proportional to 13,719.96, 20,580.66 and 4,360.68 is: 6,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.96 : 20,580.66 = 4,360.68 : x
  2. Step 2: Convert to fraction form
    13,719.96/20,580.66 = 4,360.68/x
  3. Step 3: Cross multiply
    13,719.96x = 20,580.66 × 4,360.68
  4. Step 4: Simplify right side
    13,719.96x = 89,745,672.45
  5. Step 5: Solve for x
    x = 89,745,672.45/13,719.96
  6. Step 6: Final answer
    x = 6,541.25

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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.