Home / 10,342.83-15,506.69-3,318.85

Finding the Fourth Proportional to 10,342.83, 15,506.69 and 3,318.85

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Solution

The fourth proportional to 10,342.83, 15,506.69 and 3,318.85 is: 4,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.83 : 15,506.69 = 3,318.85 : x
  2. Step 2: Convert to fraction form
    10,342.83/15,506.69 = 3,318.85/x
  3. Step 3: Cross multiply
    10,342.83x = 15,506.69 × 3,318.85
  4. Step 4: Simplify right side
    10,342.83x = 51,464,378.11
  5. Step 5: Solve for x
    x = 51,464,378.11/10,342.83
  6. Step 6: Final answer
    x = 4,975.85

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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.