Home / 9,780.94-13,496.25-5,530.87

Finding the Fourth Proportional to 9,780.94, 13,496.25 and 5,530.87

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Solution

The fourth proportional to 9,780.94, 13,496.25 and 5,530.87 is: 7,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.94 : 13,496.25 = 5,530.87 : x
  2. Step 2: Convert to fraction form
    9,780.94/13,496.25 = 5,530.87/x
  3. Step 3: Cross multiply
    9,780.94x = 13,496.25 × 5,530.87
  4. Step 4: Simplify right side
    9,780.94x = 74,646,004.24
  5. Step 5: Solve for x
    x = 74,646,004.24/9,780.94
  6. Step 6: Final answer
    x = 7,631.78

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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.