Home / 15,816-21,824.19-8,741.46

Finding the Fourth Proportional to 15,816, 21,824.19 and 8,741.46

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Solution

The fourth proportional to 15,816, 21,824.19 and 8,741.46 is: 12,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816 : 21,824.19 = 8,741.46 : x
  2. Step 2: Convert to fraction form
    15,816/21,824.19 = 8,741.46/x
  3. Step 3: Cross multiply
    15,816x = 21,824.19 × 8,741.46
  4. Step 4: Simplify right side
    15,816x = 190,775,283.92
  5. Step 5: Solve for x
    x = 190,775,283.92/15,816
  6. Step 6: Final answer
    x = 12,062.17

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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.