Home / 10,190.91-15,287.52-9,144.49

Finding the Fourth Proportional to 10,190.91, 15,287.52 and 9,144.49

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Solution

The fourth proportional to 10,190.91, 15,287.52 and 9,144.49 is: 13,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.91 : 15,287.52 = 9,144.49 : x
  2. Step 2: Convert to fraction form
    10,190.91/15,287.52 = 9,144.49/x
  3. Step 3: Cross multiply
    10,190.91x = 15,287.52 × 9,144.49
  4. Step 4: Simplify right side
    10,190.91x = 139,796,573.76
  5. Step 5: Solve for x
    x = 139,796,573.76/10,190.91
  6. Step 6: Final answer
    x = 13,717.77

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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.