Home / 9,078.60-12,529.45-5,495.53

Finding the Fourth Proportional to 9,078.60, 12,529.45 and 5,495.53

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Solution

The fourth proportional to 9,078.60, 12,529.45 and 5,495.53 is: 7,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.60 : 12,529.45 = 5,495.53 : x
  2. Step 2: Convert to fraction form
    9,078.60/12,529.45 = 5,495.53/x
  3. Step 3: Cross multiply
    9,078.60x = 12,529.45 × 5,495.53
  4. Step 4: Simplify right side
    9,078.60x = 68,855,923.30
  5. Step 5: Solve for x
    x = 68,855,923.30/9,078.60
  6. Step 6: Final answer
    x = 7,584.42

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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.