Home / 10,342.84-15,506.68-3,318.86

Finding the Fourth Proportional to 10,342.84, 15,506.68 and 3,318.86

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Solution

The fourth proportional to 10,342.84, 15,506.68 and 3,318.86 is: 4,975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.84 : 15,506.68 = 3,318.86 : x
  2. Step 2: Convert to fraction form
    10,342.84/15,506.68 = 3,318.86/x
  3. Step 3: Cross multiply
    10,342.84x = 15,506.68 × 3,318.86
  4. Step 4: Simplify right side
    10,342.84x = 51,464,499.98
  5. Step 5: Solve for x
    x = 51,464,499.98/10,342.84
  6. Step 6: Final answer
    x = 4,975.86

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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.