Home / 9,724.18-13,420.66-5,531.62

Finding the Fourth Proportional to 9,724.18, 13,420.66 and 5,531.62

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Solution

The fourth proportional to 9,724.18, 13,420.66 and 5,531.62 is: 7,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,724.18 : 13,420.66 = 5,531.62 : x
  2. Step 2: Convert to fraction form
    9,724.18/13,420.66 = 5,531.62/x
  3. Step 3: Cross multiply
    9,724.18x = 13,420.66 × 5,531.62
  4. Step 4: Simplify right side
    9,724.18x = 74,237,991.27
  5. Step 5: Solve for x
    x = 74,237,991.27/9,724.18
  6. Step 6: Final answer
    x = 7,634.37

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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.