Home / 9,509.56-13,121.60-5,530.84

Finding the Fourth Proportional to 9,509.56, 13,121.60 and 5,530.84

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Solution

The fourth proportional to 9,509.56, 13,121.60 and 5,530.84 is: 7,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.56 : 13,121.60 = 5,530.84 : x
  2. Step 2: Convert to fraction form
    9,509.56/13,121.60 = 5,530.84/x
  3. Step 3: Cross multiply
    9,509.56x = 13,121.60 × 5,530.84
  4. Step 4: Simplify right side
    9,509.56x = 72,573,470.14
  5. Step 5: Solve for x
    x = 72,573,470.14/9,509.56
  6. Step 6: Final answer
    x = 7,631.63

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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.