Home / 14,139.54-21,206.54-13,436.96

Finding the Fourth Proportional to 14,139.54, 21,206.54 and 13,436.96

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Solution

The fourth proportional to 14,139.54, 21,206.54 and 13,436.96 is: 20,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.54 : 21,206.54 = 13,436.96 : x
  2. Step 2: Convert to fraction form
    14,139.54/21,206.54 = 13,436.96/x
  3. Step 3: Cross multiply
    14,139.54x = 21,206.54 × 13,436.96
  4. Step 4: Simplify right side
    14,139.54x = 284,951,357.28
  5. Step 5: Solve for x
    x = 284,951,357.28/14,139.54
  6. Step 6: Final answer
    x = 20,152.80

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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.