Home / 12,557.66-18,839.54-3,792.05

Finding the Fourth Proportional to 12,557.66, 18,839.54 and 3,792.05

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Solution

The fourth proportional to 12,557.66, 18,839.54 and 3,792.05 is: 5,689.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.66 : 18,839.54 = 3,792.05 : x
  2. Step 2: Convert to fraction form
    12,557.66/18,839.54 = 3,792.05/x
  3. Step 3: Cross multiply
    12,557.66x = 18,839.54 × 3,792.05
  4. Step 4: Simplify right side
    12,557.66x = 71,440,477.66
  5. Step 5: Solve for x
    x = 71,440,477.66/12,557.66
  6. Step 6: Final answer
    x = 5,689.00

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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.