Home / 10,078.61-15,117.99-5,695.04

Finding the Fourth Proportional to 10,078.61, 15,117.99 and 5,695.04

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Solution

The fourth proportional to 10,078.61, 15,117.99 and 5,695.04 is: 8,542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.61 : 15,117.99 = 5,695.04 : x
  2. Step 2: Convert to fraction form
    10,078.61/15,117.99 = 5,695.04/x
  3. Step 3: Cross multiply
    10,078.61x = 15,117.99 × 5,695.04
  4. Step 4: Simplify right side
    10,078.61x = 86,097,606.24
  5. Step 5: Solve for x
    x = 86,097,606.24/10,078.61
  6. Step 6: Final answer
    x = 8,542.61

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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.