Home / 13,407.13-20,106.78-5,081.14

Finding the Fourth Proportional to 13,407.13, 20,106.78 and 5,081.14

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Solution

The fourth proportional to 13,407.13, 20,106.78 and 5,081.14 is: 7,620.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.13 : 20,106.78 = 5,081.14 : x
  2. Step 2: Convert to fraction form
    13,407.13/20,106.78 = 5,081.14/x
  3. Step 3: Cross multiply
    13,407.13x = 20,106.78 × 5,081.14
  4. Step 4: Simplify right side
    13,407.13x = 102,165,364.13
  5. Step 5: Solve for x
    x = 102,165,364.13/13,407.13
  6. Step 6: Final answer
    x = 7,620.23

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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.