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Finding the Fourth Proportional to 9,813.66, 14,720.43 and 5,440.37

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Solution

The fourth proportional to 9,813.66, 14,720.43 and 5,440.37 is: 8,160.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,813.66 : 14,720.43 = 5,440.37 : x
  2. Step 2: Convert to fraction form
    9,813.66/14,720.43 = 5,440.37/x
  3. Step 3: Cross multiply
    9,813.66x = 14,720.43 × 5,440.37
  4. Step 4: Simplify right side
    9,813.66x = 80,084,532.56
  5. Step 5: Solve for x
    x = 80,084,532.56/9,813.66
  6. Step 6: Final answer
    x = 8,160.52

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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.