Home / 9,431.61-13,016.61-5,239.86

Finding the Fourth Proportional to 9,431.61, 13,016.61 and 5,239.86

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Solution

The fourth proportional to 9,431.61, 13,016.61 and 5,239.86 is: 7,231.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.61 : 13,016.61 = 5,239.86 : x
  2. Step 2: Convert to fraction form
    9,431.61/13,016.61 = 5,239.86/x
  3. Step 3: Cross multiply
    9,431.61x = 13,016.61 × 5,239.86
  4. Step 4: Simplify right side
    9,431.61x = 68,205,214.07
  5. Step 5: Solve for x
    x = 68,205,214.07/9,431.61
  6. Step 6: Final answer
    x = 7,231.56

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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.