Home / 10,078.49-15,115.31-3,152.99

Finding the Fourth Proportional to 10,078.49, 15,115.31 and 3,152.99

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Solution

The fourth proportional to 10,078.49, 15,115.31 and 3,152.99 is: 4,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.49 : 15,115.31 = 3,152.99 : x
  2. Step 2: Convert to fraction form
    10,078.49/15,115.31 = 3,152.99/x
  3. Step 3: Cross multiply
    10,078.49x = 15,115.31 × 3,152.99
  4. Step 4: Simplify right side
    10,078.49x = 47,658,455.12
  5. Step 5: Solve for x
    x = 47,658,455.12/10,078.49
  6. Step 6: Final answer
    x = 4,728.73

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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.