Home / 13,189.34-19,786.26-4,869.40

Finding the Fourth Proportional to 13,189.34, 19,786.26 and 4,869.40

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Solution

The fourth proportional to 13,189.34, 19,786.26 and 4,869.40 is: 7,304.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.34 : 19,786.26 = 4,869.40 : x
  2. Step 2: Convert to fraction form
    13,189.34/19,786.26 = 4,869.40/x
  3. Step 3: Cross multiply
    13,189.34x = 19,786.26 × 4,869.40
  4. Step 4: Simplify right side
    13,189.34x = 96,347,296.96
  5. Step 5: Solve for x
    x = 96,347,296.96/13,189.34
  6. Step 6: Final answer
    x = 7,304.93

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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.