Home / 15,617.94-21,553.20-8,544.81

Finding the Fourth Proportional to 15,617.94, 21,553.20 and 8,544.81

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Solution

The fourth proportional to 15,617.94, 21,553.20 and 8,544.81 is: 11,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.94 : 21,553.20 = 8,544.81 : x
  2. Step 2: Convert to fraction form
    15,617.94/21,553.20 = 8,544.81/x
  3. Step 3: Cross multiply
    15,617.94x = 21,553.20 × 8,544.81
  4. Step 4: Simplify right side
    15,617.94x = 184,167,998.89
  5. Step 5: Solve for x
    x = 184,167,998.89/15,617.94
  6. Step 6: Final answer
    x = 11,792.08

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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.