Home / 15,857.12-21,882.84-10,277.84

Finding the Fourth Proportional to 15,857.12, 21,882.84 and 10,277.84

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Solution

The fourth proportional to 15,857.12, 21,882.84 and 10,277.84 is: 14,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857.12 : 21,882.84 = 10,277.84 : x
  2. Step 2: Convert to fraction form
    15,857.12/21,882.84 = 10,277.84/x
  3. Step 3: Cross multiply
    15,857.12x = 21,882.84 × 10,277.84
  4. Step 4: Simplify right side
    15,857.12x = 224,908,328.27
  5. Step 5: Solve for x
    x = 224,908,328.27/15,857.12
  6. Step 6: Final answer
    x = 14,183.43

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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.