Home / 13,260.36-19,878.19-4,489.14

Finding the Fourth Proportional to 13,260.36, 19,878.19 and 4,489.14

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Solution

The fourth proportional to 13,260.36, 19,878.19 and 4,489.14 is: 6,729.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.36 : 19,878.19 = 4,489.14 : x
  2. Step 2: Convert to fraction form
    13,260.36/19,878.19 = 4,489.14/x
  3. Step 3: Cross multiply
    13,260.36x = 19,878.19 × 4,489.14
  4. Step 4: Simplify right side
    13,260.36x = 89,235,977.86
  5. Step 5: Solve for x
    x = 89,235,977.86/13,260.36
  6. Step 6: Final answer
    x = 6,729.53

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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.