Home / 9,939.10-13,714.02-6,401.80

Finding the Fourth Proportional to 9,939.10, 13,714.02 and 6,401.80

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Solution

The fourth proportional to 9,939.10, 13,714.02 and 6,401.80 is: 8,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.10 : 13,714.02 = 6,401.80 : x
  2. Step 2: Convert to fraction form
    9,939.10/13,714.02 = 6,401.80/x
  3. Step 3: Cross multiply
    9,939.10x = 13,714.02 × 6,401.80
  4. Step 4: Simplify right side
    9,939.10x = 87,794,413.24
  5. Step 5: Solve for x
    x = 87,794,413.24/9,939.10
  6. Step 6: Final answer
    x = 8,833.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.