Home / 15,304.77-21,122.79-8,500.35

Finding the Fourth Proportional to 15,304.77, 21,122.79 and 8,500.35

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Solution

The fourth proportional to 15,304.77, 21,122.79 and 8,500.35 is: 11,731.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304.77 : 21,122.79 = 8,500.35 : x
  2. Step 2: Convert to fraction form
    15,304.77/21,122.79 = 8,500.35/x
  3. Step 3: Cross multiply
    15,304.77x = 21,122.79 × 8,500.35
  4. Step 4: Simplify right side
    15,304.77x = 179,551,107.98
  5. Step 5: Solve for x
    x = 179,551,107.98/15,304.77
  6. Step 6: Final answer
    x = 11,731.71

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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.