Home / 13,806.19-20,678.13-6,395.08

Finding the Fourth Proportional to 13,806.19, 20,678.13 and 6,395.08

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Solution

The fourth proportional to 13,806.19, 20,678.13 and 6,395.08 is: 9,578.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.19 : 20,678.13 = 6,395.08 : x
  2. Step 2: Convert to fraction form
    13,806.19/20,678.13 = 6,395.08/x
  3. Step 3: Cross multiply
    13,806.19x = 20,678.13 × 6,395.08
  4. Step 4: Simplify right side
    13,806.19x = 132,238,295.60
  5. Step 5: Solve for x
    x = 132,238,295.60/13,806.19
  6. Step 6: Final answer
    x = 9,578.19

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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.