Home / 13,727.08-20,625.72-12,930.31

Finding the Fourth Proportional to 13,727.08, 20,625.72 and 12,930.31

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Solution

The fourth proportional to 13,727.08, 20,625.72 and 12,930.31 is: 19,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.08 : 20,625.72 = 12,930.31 : x
  2. Step 2: Convert to fraction form
    13,727.08/20,625.72 = 12,930.31/x
  3. Step 3: Cross multiply
    13,727.08x = 20,625.72 × 12,930.31
  4. Step 4: Simplify right side
    13,727.08x = 266,696,953.57
  5. Step 5: Solve for x
    x = 266,696,953.57/13,727.08
  6. Step 6: Final answer
    x = 19,428.53

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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.