Home / 13,715.15-20,572.73-3,326.81

Finding the Fourth Proportional to 13,715.15, 20,572.73 and 3,326.81

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Solution

The fourth proportional to 13,715.15, 20,572.73 and 3,326.81 is: 4,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.15 : 20,572.73 = 3,326.81 : x
  2. Step 2: Convert to fraction form
    13,715.15/20,572.73 = 3,326.81/x
  3. Step 3: Cross multiply
    13,715.15x = 20,572.73 × 3,326.81
  4. Step 4: Simplify right side
    13,715.15x = 68,441,623.64
  5. Step 5: Solve for x
    x = 68,441,623.64/13,715.15
  6. Step 6: Final answer
    x = 4,990.22

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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.