Home / 19,185.74-28,725.46-9,805.56

Finding the Fourth Proportional to 19,185.74, 28,725.46 and 9,805.56

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Solution

The fourth proportional to 19,185.74, 28,725.46 and 9,805.56 is: 14,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.74 : 28,725.46 = 9,805.56 : x
  2. Step 2: Convert to fraction form
    19,185.74/28,725.46 = 9,805.56/x
  3. Step 3: Cross multiply
    19,185.74x = 28,725.46 × 9,805.56
  4. Step 4: Simplify right side
    19,185.74x = 281,669,116.90
  5. Step 5: Solve for x
    x = 281,669,116.90/19,185.74
  6. Step 6: Final answer
    x = 14,681.17

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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.