Home / 13,309.19-19,967.23-3,949.13

Finding the Fourth Proportional to 13,309.19, 19,967.23 and 3,949.13

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Solution

The fourth proportional to 13,309.19, 19,967.23 and 3,949.13 is: 5,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.19 : 19,967.23 = 3,949.13 : x
  2. Step 2: Convert to fraction form
    13,309.19/19,967.23 = 3,949.13/x
  3. Step 3: Cross multiply
    13,309.19x = 19,967.23 × 3,949.13
  4. Step 4: Simplify right side
    13,309.19x = 78,853,196.81
  5. Step 5: Solve for x
    x = 78,853,196.81/13,309.19
  6. Step 6: Final answer
    x = 5,924.72

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1.5x scale

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.