Home / 13,309.13-19,967.07-4,989.17

Finding the Fourth Proportional to 13,309.13, 19,967.07 and 4,989.17

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Solution

The fourth proportional to 13,309.13, 19,967.07 and 4,989.17 is: 7,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.13 : 19,967.07 = 4,989.17 : x
  2. Step 2: Convert to fraction form
    13,309.13/19,967.07 = 4,989.17/x
  3. Step 3: Cross multiply
    13,309.13x = 19,967.07 × 4,989.17
  4. Step 4: Simplify right side
    13,309.13x = 99,619,006.80
  5. Step 5: Solve for x
    x = 99,619,006.80/13,309.13
  6. Step 6: Final answer
    x = 7,485.02

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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.