Home / 10,078.39-15,121.05-4,535.62

Finding the Fourth Proportional to 10,078.39, 15,121.05 and 4,535.62

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Solution

The fourth proportional to 10,078.39, 15,121.05 and 4,535.62 is: 6,804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.39 : 15,121.05 = 4,535.62 : x
  2. Step 2: Convert to fraction form
    10,078.39/15,121.05 = 4,535.62/x
  3. Step 3: Cross multiply
    10,078.39x = 15,121.05 × 4,535.62
  4. Step 4: Simplify right side
    10,078.39x = 68,583,336.80
  5. Step 5: Solve for x
    x = 68,583,336.80/10,078.39
  6. Step 6: Final answer
    x = 6,804.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.