Home / 9,961.86-13,747.65-5,485.93

Finding the Fourth Proportional to 9,961.86, 13,747.65 and 5,485.93

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Solution

The fourth proportional to 9,961.86, 13,747.65 and 5,485.93 is: 7,570.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,961.86 : 13,747.65 = 5,485.93 : x
  2. Step 2: Convert to fraction form
    9,961.86/13,747.65 = 5,485.93/x
  3. Step 3: Cross multiply
    9,961.86x = 13,747.65 × 5,485.93
  4. Step 4: Simplify right side
    9,961.86x = 75,418,606.05
  5. Step 5: Solve for x
    x = 75,418,606.05/9,961.86
  6. Step 6: Final answer
    x = 7,570.73

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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.