Home / 9,669.48-13,344.62-5,420.93

Finding the Fourth Proportional to 9,669.48, 13,344.62 and 5,420.93

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Solution

The fourth proportional to 9,669.48, 13,344.62 and 5,420.93 is: 7,481.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,669.48 : 13,344.62 = 5,420.93 : x
  2. Step 2: Convert to fraction form
    9,669.48/13,344.62 = 5,420.93/x
  3. Step 3: Cross multiply
    9,669.48x = 13,344.62 × 5,420.93
  4. Step 4: Simplify right side
    9,669.48x = 72,340,157.07
  5. Step 5: Solve for x
    x = 72,340,157.07/9,669.48
  6. Step 6: Final answer
    x = 7,481.29

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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.