Home / 9,985.25-14,972.26-3,318.18

Finding the Fourth Proportional to 9,985.25, 14,972.26 and 3,318.18

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Solution

The fourth proportional to 9,985.25, 14,972.26 and 3,318.18 is: 4,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.25 : 14,972.26 = 3,318.18 : x
  2. Step 2: Convert to fraction form
    9,985.25/14,972.26 = 3,318.18/x
  3. Step 3: Cross multiply
    9,985.25x = 14,972.26 × 3,318.18
  4. Step 4: Simplify right side
    9,985.25x = 49,680,653.69
  5. Step 5: Solve for x
    x = 49,680,653.69/9,985.25
  6. Step 6: Final answer
    x = 4,975.40

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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.