Home / 14,286.84-19,715.94-8,621.88

Finding the Fourth Proportional to 14,286.84, 19,715.94 and 8,621.88

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Solution

The fourth proportional to 14,286.84, 19,715.94 and 8,621.88 is: 11,898.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.84 : 19,715.94 = 8,621.88 : x
  2. Step 2: Convert to fraction form
    14,286.84/19,715.94 = 8,621.88/x
  3. Step 3: Cross multiply
    14,286.84x = 19,715.94 × 8,621.88
  4. Step 4: Simplify right side
    14,286.84x = 169,988,468.77
  5. Step 5: Solve for x
    x = 169,988,468.77/14,286.84
  6. Step 6: Final answer
    x = 11,898.26

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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.