Home / 9,815.49-13,544.15-6,635.70

Finding the Fourth Proportional to 9,815.49, 13,544.15 and 6,635.70

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Solution

The fourth proportional to 9,815.49, 13,544.15 and 6,635.70 is: 9,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.49 : 13,544.15 = 6,635.70 : x
  2. Step 2: Convert to fraction form
    9,815.49/13,544.15 = 6,635.70/x
  3. Step 3: Cross multiply
    9,815.49x = 13,544.15 × 6,635.70
  4. Step 4: Simplify right side
    9,815.49x = 89,874,882.98
  5. Step 5: Solve for x
    x = 89,874,882.98/9,815.49
  6. Step 6: Final answer
    x = 9,156.43

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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.