Home / 9,905.25-13,669.65-5,713.50

Finding the Fourth Proportional to 9,905.25, 13,669.65 and 5,713.50

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Solution

The fourth proportional to 9,905.25, 13,669.65 and 5,713.50 is: 7,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.25 : 13,669.65 = 5,713.50 : x
  2. Step 2: Convert to fraction form
    9,905.25/13,669.65 = 5,713.50/x
  3. Step 3: Cross multiply
    9,905.25x = 13,669.65 × 5,713.50
  4. Step 4: Simplify right side
    9,905.25x = 78,101,545.28
  5. Step 5: Solve for x
    x = 78,101,545.28/9,905.25
  6. Step 6: Final answer
    x = 7,884.86

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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.