Home / 13,443.11-20,125.23-9,426.57

Finding the Fourth Proportional to 13,443.11, 20,125.23 and 9,426.57

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Solution

The fourth proportional to 13,443.11, 20,125.23 and 9,426.57 is: 14,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.11 : 20,125.23 = 9,426.57 : x
  2. Step 2: Convert to fraction form
    13,443.11/20,125.23 = 9,426.57/x
  3. Step 3: Cross multiply
    13,443.11x = 20,125.23 × 9,426.57
  4. Step 4: Simplify right side
    13,443.11x = 189,711,889.36
  5. Step 5: Solve for x
    x = 189,711,889.36/13,443.11
  6. Step 6: Final answer
    x = 14,112.21

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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.