Home / 9,218.40-13,827.60-4,286.40

Finding the Fourth Proportional to 9,218.40, 13,827.60 and 4,286.40

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Solution

The fourth proportional to 9,218.40, 13,827.60 and 4,286.40 is: 6,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.40 : 13,827.60 = 4,286.40 : x
  2. Step 2: Convert to fraction form
    9,218.40/13,827.60 = 4,286.40/x
  3. Step 3: Cross multiply
    9,218.40x = 13,827.60 × 4,286.40
  4. Step 4: Simplify right side
    9,218.40x = 59,270,624.64
  5. Step 5: Solve for x
    x = 59,270,624.64/9,218.40
  6. Step 6: Final answer
    x = 6,429.60

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Similar ratio
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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.