Home / 13,347.49-18,419.34-7,379.04

Finding the Fourth Proportional to 13,347.49, 18,419.34 and 7,379.04

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Solution

The fourth proportional to 13,347.49, 18,419.34 and 7,379.04 is: 10,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.49 : 18,419.34 = 7,379.04 : x
  2. Step 2: Convert to fraction form
    13,347.49/18,419.34 = 7,379.04/x
  3. Step 3: Cross multiply
    13,347.49x = 18,419.34 × 7,379.04
  4. Step 4: Simplify right side
    13,347.49x = 135,917,046.63
  5. Step 5: Solve for x
    x = 135,917,046.63/13,347.49
  6. Step 6: Final answer
    x = 10,182.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.