Home / 9,318.60-13,986.95-4,391.64

Finding the Fourth Proportional to 9,318.60, 13,986.95 and 4,391.64

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Solution

The fourth proportional to 9,318.60, 13,986.95 and 4,391.64 is: 6,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.60 : 13,986.95 = 4,391.64 : x
  2. Step 2: Convert to fraction form
    9,318.60/13,986.95 = 4,391.64/x
  3. Step 3: Cross multiply
    9,318.60x = 13,986.95 × 4,391.64
  4. Step 4: Simplify right side
    9,318.60x = 61,425,627.14
  5. Step 5: Solve for x
    x = 61,425,627.14/9,318.60
  6. Step 6: Final answer
    x = 6,591.72

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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.