Home / 13,001.76-19,496.88-4,788

Finding the Fourth Proportional to 13,001.76, 19,496.88 and 4,788

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Solution

The fourth proportional to 13,001.76, 19,496.88 and 4,788 is: 7,179.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001.76 : 19,496.88 = 4,788 : x
  2. Step 2: Convert to fraction form
    13,001.76/19,496.88 = 4,788/x
  3. Step 3: Cross multiply
    13,001.76x = 19,496.88 × 4,788
  4. Step 4: Simplify right side
    13,001.76x = 93,351,061.44
  5. Step 5: Solve for x
    x = 93,351,061.44/13,001.76
  6. Step 6: Final answer
    x = 7,179.88

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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.