Home / 13,426.62-20,140.13-4,661.81

Finding the Fourth Proportional to 13,426.62, 20,140.13 and 4,661.81

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Solution

The fourth proportional to 13,426.62, 20,140.13 and 4,661.81 is: 6,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.62 : 20,140.13 = 4,661.81 : x
  2. Step 2: Convert to fraction form
    13,426.62/20,140.13 = 4,661.81/x
  3. Step 3: Cross multiply
    13,426.62x = 20,140.13 × 4,661.81
  4. Step 4: Simplify right side
    13,426.62x = 93,889,459.44
  5. Step 5: Solve for x
    x = 93,889,459.44/13,426.62
  6. Step 6: Final answer
    x = 6,992.78

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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.