Home / 7,507.08-11,205.65-6,620.38

Finding the Fourth Proportional to 7,507.08, 11,205.65 and 6,620.38

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Solution

The fourth proportional to 7,507.08, 11,205.65 and 6,620.38 is: 9,882.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,507.08 : 11,205.65 = 6,620.38 : x
  2. Step 2: Convert to fraction form
    7,507.08/11,205.65 = 6,620.38/x
  3. Step 3: Cross multiply
    7,507.08x = 11,205.65 × 6,620.38
  4. Step 4: Simplify right side
    7,507.08x = 74,185,600.03
  5. Step 5: Solve for x
    x = 74,185,600.03/7,507.08
  6. Step 6: Final answer
    x = 9,882.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.