Home / 13,156.70-19,736.06-4,391.62

Finding the Fourth Proportional to 13,156.70, 19,736.06 and 4,391.62

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Solution

The fourth proportional to 13,156.70, 19,736.06 and 4,391.62 is: 6,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.70 : 19,736.06 = 4,391.62 : x
  2. Step 2: Convert to fraction form
    13,156.70/19,736.06 = 4,391.62/x
  3. Step 3: Cross multiply
    13,156.70x = 19,736.06 × 4,391.62
  4. Step 4: Simplify right side
    13,156.70x = 86,673,275.82
  5. Step 5: Solve for x
    x = 86,673,275.82/13,156.70
  6. Step 6: Final answer
    x = 6,587.77

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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.