Home / 7,200.08-9,935.94-4,013.36

Finding the Fourth Proportional to 7,200.08, 9,935.94 and 4,013.36

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Solution

The fourth proportional to 7,200.08, 9,935.94 and 4,013.36 is: 5,538.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.08 : 9,935.94 = 4,013.36 : x
  2. Step 2: Convert to fraction form
    7,200.08/9,935.94 = 4,013.36/x
  3. Step 3: Cross multiply
    7,200.08x = 9,935.94 × 4,013.36
  4. Step 4: Simplify right side
    7,200.08x = 39,876,454.48
  5. Step 5: Solve for x
    x = 39,876,454.48/7,200.08
  6. Step 6: Final answer
    x = 5,538.34

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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.