Home / 13,258.08-19,887-3,397.21

Finding the Fourth Proportional to 13,258.08, 19,887 and 3,397.21

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Solution

The fourth proportional to 13,258.08, 19,887 and 3,397.21 is: 5,095.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.08 : 19,887 = 3,397.21 : x
  2. Step 2: Convert to fraction form
    13,258.08/19,887 = 3,397.21/x
  3. Step 3: Cross multiply
    13,258.08x = 19,887 × 3,397.21
  4. Step 4: Simplify right side
    13,258.08x = 67,560,340.13
  5. Step 5: Solve for x
    x = 67,560,340.13/13,258.08
  6. Step 6: Final answer
    x = 5,095.79

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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.