Home / 13,451.72-20,177.67-4,686.60

Finding the Fourth Proportional to 13,451.72, 20,177.67 and 4,686.60

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Solution

The fourth proportional to 13,451.72, 20,177.67 and 4,686.60 is: 7,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.72 : 20,177.67 = 4,686.60 : x
  2. Step 2: Convert to fraction form
    13,451.72/20,177.67 = 4,686.60/x
  3. Step 3: Cross multiply
    13,451.72x = 20,177.67 × 4,686.60
  4. Step 4: Simplify right side
    13,451.72x = 94,564,668.22
  5. Step 5: Solve for x
    x = 94,564,668.22/13,451.72
  6. Step 6: Final answer
    x = 7,029.93

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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.