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Finding the Fourth Proportional to 9,939.72, 14,909.61 and 3,014.22

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Solution

The fourth proportional to 9,939.72, 14,909.61 and 3,014.22 is: 4,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.72 : 14,909.61 = 3,014.22 : x
  2. Step 2: Convert to fraction form
    9,939.72/14,909.61 = 3,014.22/x
  3. Step 3: Cross multiply
    9,939.72x = 14,909.61 × 3,014.22
  4. Step 4: Simplify right side
    9,939.72x = 44,940,844.65
  5. Step 5: Solve for x
    x = 44,940,844.65/9,939.72
  6. Step 6: Final answer
    x = 4,521.34

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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.