Home / 13,725.66-18,943.09-8,950.71

Finding the Fourth Proportional to 13,725.66, 18,943.09 and 8,950.71

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Solution

The fourth proportional to 13,725.66, 18,943.09 and 8,950.71 is: 12,353.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.66 : 18,943.09 = 8,950.71 : x
  2. Step 2: Convert to fraction form
    13,725.66/18,943.09 = 8,950.71/x
  3. Step 3: Cross multiply
    13,725.66x = 18,943.09 × 8,950.71
  4. Step 4: Simplify right side
    13,725.66x = 169,554,082.72
  5. Step 5: Solve for x
    x = 169,554,082.72/13,725.66
  6. Step 6: Final answer
    x = 12,353.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.