Home / 15,841.42-21,857.44-10,816.11

Finding the Fourth Proportional to 15,841.42, 21,857.44 and 10,816.11

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Solution

The fourth proportional to 15,841.42, 21,857.44 and 10,816.11 is: 14,923.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.42 : 21,857.44 = 10,816.11 : x
  2. Step 2: Convert to fraction form
    15,841.42/21,857.44 = 10,816.11/x
  3. Step 3: Cross multiply
    15,841.42x = 21,857.44 × 10,816.11
  4. Step 4: Simplify right side
    15,841.42x = 236,412,475.36
  5. Step 5: Solve for x
    x = 236,412,475.36/15,841.42
  6. Step 6: Final answer
    x = 14,923.69

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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.