Home / 9,663.93-13,331.39-6,121.53

Finding the Fourth Proportional to 9,663.93, 13,331.39 and 6,121.53

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Solution

The fourth proportional to 9,663.93, 13,331.39 and 6,121.53 is: 8,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,663.93 : 13,331.39 = 6,121.53 : x
  2. Step 2: Convert to fraction form
    9,663.93/13,331.39 = 6,121.53/x
  3. Step 3: Cross multiply
    9,663.93x = 13,331.39 × 6,121.53
  4. Step 4: Simplify right side
    9,663.93x = 81,608,473.22
  5. Step 5: Solve for x
    x = 81,608,473.22/9,663.93
  6. Step 6: Final answer
    x = 8,444.65

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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.