Home / 13,426.32-20,143.11-9,555.30

Finding the Fourth Proportional to 13,426.32, 20,143.11 and 9,555.30

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Solution

The fourth proportional to 13,426.32, 20,143.11 and 9,555.30 is: 14,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.32 : 20,143.11 = 9,555.30 : x
  2. Step 2: Convert to fraction form
    13,426.32/20,143.11 = 9,555.30/x
  3. Step 3: Cross multiply
    13,426.32x = 20,143.11 × 9,555.30
  4. Step 4: Simplify right side
    13,426.32x = 192,473,458.98
  5. Step 5: Solve for x
    x = 192,473,458.98/13,426.32
  6. Step 6: Final answer
    x = 14,335.53

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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.