Home / 13,426.20-20,143.32-4,661.16

Finding the Fourth Proportional to 13,426.20, 20,143.32 and 4,661.16

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Solution

The fourth proportional to 13,426.20, 20,143.32 and 4,661.16 is: 6,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.20 : 20,143.32 = 4,661.16 : x
  2. Step 2: Convert to fraction form
    13,426.20/20,143.32 = 4,661.16/x
  3. Step 3: Cross multiply
    13,426.20x = 20,143.32 × 4,661.16
  4. Step 4: Simplify right side
    13,426.20x = 93,891,237.45
  5. Step 5: Solve for x
    x = 93,891,237.45/13,426.20
  6. Step 6: Final answer
    x = 6,993.14

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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.