Home / 9,935.31-14,909.80-4,091.92

Finding the Fourth Proportional to 9,935.31, 14,909.80 and 4,091.92

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Solution

The fourth proportional to 9,935.31, 14,909.80 and 4,091.92 is: 6,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,935.31 : 14,909.80 = 4,091.92 : x
  2. Step 2: Convert to fraction form
    9,935.31/14,909.80 = 4,091.92/x
  3. Step 3: Cross multiply
    9,935.31x = 14,909.80 × 4,091.92
  4. Step 4: Simplify right side
    9,935.31x = 61,009,708.82
  5. Step 5: Solve for x
    x = 61,009,708.82/9,935.31
  6. Step 6: Final answer
    x = 6,140.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.