Home / 11,355.74-15,669.25-6,320.03

Finding the Fourth Proportional to 11,355.74, 15,669.25 and 6,320.03

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Solution

The fourth proportional to 11,355.74, 15,669.25 and 6,320.03 is: 8,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.74 : 15,669.25 = 6,320.03 : x
  2. Step 2: Convert to fraction form
    11,355.74/15,669.25 = 6,320.03/x
  3. Step 3: Cross multiply
    11,355.74x = 15,669.25 × 6,320.03
  4. Step 4: Simplify right side
    11,355.74x = 99,030,035.93
  5. Step 5: Solve for x
    x = 99,030,035.93/11,355.74
  6. Step 6: Final answer
    x = 8,720.70

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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.