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Finding the Fourth Proportional to 10,509.75, 14,502.73 and 5,911.22

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Solution

The fourth proportional to 10,509.75, 14,502.73 and 5,911.22 is: 8,157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.75 : 14,502.73 = 5,911.22 : x
  2. Step 2: Convert to fraction form
    10,509.75/14,502.73 = 5,911.22/x
  3. Step 3: Cross multiply
    10,509.75x = 14,502.73 × 5,911.22
  4. Step 4: Simplify right side
    10,509.75x = 85,728,816.89
  5. Step 5: Solve for x
    x = 85,728,816.89/10,509.75
  6. Step 6: Final answer
    x = 8,157.07

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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.