Home / 15,952.60-21,991.77-11,222.20

Finding the Fourth Proportional to 15,952.60, 21,991.77 and 11,222.20

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Solution

The fourth proportional to 15,952.60, 21,991.77 and 11,222.20 is: 15,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,952.60 : 21,991.77 = 11,222.20 : x
  2. Step 2: Convert to fraction form
    15,952.60/21,991.77 = 11,222.20/x
  3. Step 3: Cross multiply
    15,952.60x = 21,991.77 × 11,222.20
  4. Step 4: Simplify right side
    15,952.60x = 246,796,041.29
  5. Step 5: Solve for x
    x = 246,796,041.29/15,952.60
  6. Step 6: Final answer
    x = 15,470.58

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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.