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Finding the Fourth Proportional to 7,491.83, 11,220.21 and 5,921.29

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Solution

The fourth proportional to 7,491.83, 11,220.21 and 5,921.29 is: 8,868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.83 : 11,220.21 = 5,921.29 : x
  2. Step 2: Convert to fraction form
    7,491.83/11,220.21 = 5,921.29/x
  3. Step 3: Cross multiply
    7,491.83x = 11,220.21 × 5,921.29
  4. Step 4: Simplify right side
    7,491.83x = 66,438,117.27
  5. Step 5: Solve for x
    x = 66,438,117.27/7,491.83
  6. Step 6: Final answer
    x = 8,868.08

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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.