Home / 11,354.08-15,668.99-7,103.78

Finding the Fourth Proportional to 11,354.08, 15,668.99 and 7,103.78

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Solution

The fourth proportional to 11,354.08, 15,668.99 and 7,103.78 is: 9,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,354.08 : 15,668.99 = 7,103.78 : x
  2. Step 2: Convert to fraction form
    11,354.08/15,668.99 = 7,103.78/x
  3. Step 3: Cross multiply
    11,354.08x = 15,668.99 × 7,103.78
  4. Step 4: Simplify right side
    11,354.08x = 111,308,943.92
  5. Step 5: Solve for x
    x = 111,308,943.92/11,354.08
  6. Step 6: Final answer
    x = 9,803.44

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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.