Home / 15,675.14-21,631.69-8,960.91

Finding the Fourth Proportional to 15,675.14, 21,631.69 and 8,960.91

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Solution

The fourth proportional to 15,675.14, 21,631.69 and 8,960.91 is: 12,366.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.14 : 21,631.69 = 8,960.91 : x
  2. Step 2: Convert to fraction form
    15,675.14/21,631.69 = 8,960.91/x
  3. Step 3: Cross multiply
    15,675.14x = 21,631.69 × 8,960.91
  4. Step 4: Simplify right side
    15,675.14x = 193,839,604.84
  5. Step 5: Solve for x
    x = 193,839,604.84/15,675.14
  6. Step 6: Final answer
    x = 12,366.06

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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.