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Finding the Fourth Proportional to 9,612.70, 14,419.05 and 3,040.90

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Solution

The fourth proportional to 9,612.70, 14,419.05 and 3,040.90 is: 4,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.70 : 14,419.05 = 3,040.90 : x
  2. Step 2: Convert to fraction form
    9,612.70/14,419.05 = 3,040.90/x
  3. Step 3: Cross multiply
    9,612.70x = 14,419.05 × 3,040.90
  4. Step 4: Simplify right side
    9,612.70x = 43,846,889.15
  5. Step 5: Solve for x
    x = 43,846,889.15/9,612.70
  6. Step 6: Final answer
    x = 4,561.35

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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.