Home / 13,506.12-20,259.18-3,645.38

Finding the Fourth Proportional to 13,506.12, 20,259.18 and 3,645.38

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Solution

The fourth proportional to 13,506.12, 20,259.18 and 3,645.38 is: 5,468.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.12 : 20,259.18 = 3,645.38 : x
  2. Step 2: Convert to fraction form
    13,506.12/20,259.18 = 3,645.38/x
  3. Step 3: Cross multiply
    13,506.12x = 20,259.18 × 3,645.38
  4. Step 4: Simplify right side
    13,506.12x = 73,852,409.59
  5. Step 5: Solve for x
    x = 73,852,409.59/13,506.12
  6. Step 6: Final answer
    x = 5,468.07

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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.