Home / 15,816-21,826.44-10,236.72

Finding the Fourth Proportional to 15,816, 21,826.44 and 10,236.72

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Solution

The fourth proportional to 15,816, 21,826.44 and 10,236.72 is: 14,126.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816 : 21,826.44 = 10,236.72 : x
  2. Step 2: Convert to fraction form
    15,816/21,826.44 = 10,236.72/x
  3. Step 3: Cross multiply
    15,816x = 21,826.44 × 10,236.72
  4. Step 4: Simplify right side
    15,816x = 223,431,154.88
  5. Step 5: Solve for x
    x = 223,431,154.88/15,816
  6. Step 6: Final answer
    x = 14,126.91

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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.