Home / 12,124.30-18,186.47-3,804.53

Finding the Fourth Proportional to 12,124.30, 18,186.47 and 3,804.53

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Solution

The fourth proportional to 12,124.30, 18,186.47 and 3,804.53 is: 5,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.30 : 18,186.47 = 3,804.53 : x
  2. Step 2: Convert to fraction form
    12,124.30/18,186.47 = 3,804.53/x
  3. Step 3: Cross multiply
    12,124.30x = 18,186.47 × 3,804.53
  4. Step 4: Simplify right side
    12,124.30x = 69,190,970.71
  5. Step 5: Solve for x
    x = 69,190,970.71/12,124.30
  6. Step 6: Final answer
    x = 5,706.80

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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.