Home / 12,549.61-18,823.87-3,190.02

Finding the Fourth Proportional to 12,549.61, 18,823.87 and 3,190.02

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Solution

The fourth proportional to 12,549.61, 18,823.87 and 3,190.02 is: 4,784.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.61 : 18,823.87 = 3,190.02 : x
  2. Step 2: Convert to fraction form
    12,549.61/18,823.87 = 3,190.02/x
  3. Step 3: Cross multiply
    12,549.61x = 18,823.87 × 3,190.02
  4. Step 4: Simplify right side
    12,549.61x = 60,048,521.78
  5. Step 5: Solve for x
    x = 60,048,521.78/12,549.61
  6. Step 6: Final answer
    x = 4,784.89

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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.