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Finding the Fourth Proportional to 15,286.72, 22,895.84 and 13,286.72

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Solution

The fourth proportional to 15,286.72, 22,895.84 and 13,286.72 is: 19,900.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.72 : 22,895.84 = 13,286.72 : x
  2. Step 2: Convert to fraction form
    15,286.72/22,895.84 = 13,286.72/x
  3. Step 3: Cross multiply
    15,286.72x = 22,895.84 × 13,286.72
  4. Step 4: Simplify right side
    15,286.72x = 304,210,615.24
  5. Step 5: Solve for x
    x = 304,210,615.24/15,286.72
  6. Step 6: Final answer
    x = 19,900.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.