Home / 12,558.02-18,836.54-3,792.68

Finding the Fourth Proportional to 12,558.02, 18,836.54 and 3,792.68

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Solution

The fourth proportional to 12,558.02, 18,836.54 and 3,792.68 is: 5,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.02 : 18,836.54 = 3,792.68 : x
  2. Step 2: Convert to fraction form
    12,558.02/18,836.54 = 3,792.68/x
  3. Step 3: Cross multiply
    12,558.02x = 18,836.54 × 3,792.68
  4. Step 4: Simplify right side
    12,558.02x = 71,440,968.53
  5. Step 5: Solve for x
    x = 71,440,968.53/12,558.02
  6. Step 6: Final answer
    x = 5,688.87

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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.