Home / 12,468.38-18,702.56-5,076.86

Finding the Fourth Proportional to 12,468.38, 18,702.56 and 5,076.86

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Solution

The fourth proportional to 12,468.38, 18,702.56 and 5,076.86 is: 7,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468.38 : 18,702.56 = 5,076.86 : x
  2. Step 2: Convert to fraction form
    12,468.38/18,702.56 = 5,076.86/x
  3. Step 3: Cross multiply
    12,468.38x = 18,702.56 × 5,076.86
  4. Step 4: Simplify right side
    12,468.38x = 94,950,197.94
  5. Step 5: Solve for x
    x = 94,950,197.94/12,468.38
  6. Step 6: Final answer
    x = 7,615.28

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1.5x scale

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.