Home / 9,505.20-13,115.60-5,525.40

Finding the Fourth Proportional to 9,505.20, 13,115.60 and 5,525.40

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Solution

The fourth proportional to 9,505.20, 13,115.60 and 5,525.40 is: 7,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,505.20 : 13,115.60 = 5,525.40 : x
  2. Step 2: Convert to fraction form
    9,505.20/13,115.60 = 5,525.40/x
  3. Step 3: Cross multiply
    9,505.20x = 13,115.60 × 5,525.40
  4. Step 4: Simplify right side
    9,505.20x = 72,468,936.24
  5. Step 5: Solve for x
    x = 72,468,936.24/9,505.20
  6. Step 6: Final answer
    x = 7,624.14

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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.