Home / 7,842.48-10,816.92-5,192.16

Finding the Fourth Proportional to 7,842.48, 10,816.92 and 5,192.16

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Solution

The fourth proportional to 7,842.48, 10,816.92 and 5,192.16 is: 7,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.48 : 10,816.92 = 5,192.16 : x
  2. Step 2: Convert to fraction form
    7,842.48/10,816.92 = 5,192.16/x
  3. Step 3: Cross multiply
    7,842.48x = 10,816.92 × 5,192.16
  4. Step 4: Simplify right side
    7,842.48x = 56,163,179.35
  5. Step 5: Solve for x
    x = 56,163,179.35/7,842.48
  6. Step 6: Final answer
    x = 7,161.41

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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.