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Finding the Fourth Proportional to 10,879.92, 15,003.36 and 7,295.94

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Solution

The fourth proportional to 10,879.92, 15,003.36 and 7,295.94 is: 10,061.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.92 : 15,003.36 = 7,295.94 : x
  2. Step 2: Convert to fraction form
    10,879.92/15,003.36 = 7,295.94/x
  3. Step 3: Cross multiply
    10,879.92x = 15,003.36 × 7,295.94
  4. Step 4: Simplify right side
    10,879.92x = 109,463,614.36
  5. Step 5: Solve for x
    x = 109,463,614.36/10,879.92
  6. Step 6: Final answer
    x = 10,061.07

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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.