Home / 15,922.60-21,964.84-10,816.28

Finding the Fourth Proportional to 15,922.60, 21,964.84 and 10,816.28

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Solution

The fourth proportional to 15,922.60, 21,964.84 and 10,816.28 is: 14,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.60 : 21,964.84 = 10,816.28 : x
  2. Step 2: Convert to fraction form
    15,922.60/21,964.84 = 10,816.28/x
  3. Step 3: Cross multiply
    15,922.60x = 21,964.84 × 10,816.28
  4. Step 4: Simplify right side
    15,922.60x = 237,577,859.60
  5. Step 5: Solve for x
    x = 237,577,859.60/15,922.60
  6. Step 6: Final answer
    x = 14,920.80

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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.