Home / 13,308.91-19,966.79-4,989.04

Finding the Fourth Proportional to 13,308.91, 19,966.79 and 4,989.04

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Solution

The fourth proportional to 13,308.91, 19,966.79 and 4,989.04 is: 7,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.91 : 19,966.79 = 4,989.04 : x
  2. Step 2: Convert to fraction form
    13,308.91/19,966.79 = 4,989.04/x
  3. Step 3: Cross multiply
    13,308.91x = 19,966.79 × 4,989.04
  4. Step 4: Simplify right side
    13,308.91x = 99,615,089.04
  5. Step 5: Solve for x
    x = 99,615,089.04/13,308.91
  6. Step 6: Final answer
    x = 7,484.84

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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.