Home / 9,286.80-13,931.40-4,609.20

Finding the Fourth Proportional to 9,286.80, 13,931.40 and 4,609.20

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Solution

The fourth proportional to 9,286.80, 13,931.40 and 4,609.20 is: 6,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,286.80 : 13,931.40 = 4,609.20 : x
  2. Step 2: Convert to fraction form
    9,286.80/13,931.40 = 4,609.20/x
  3. Step 3: Cross multiply
    9,286.80x = 13,931.40 × 4,609.20
  4. Step 4: Simplify right side
    9,286.80x = 64,212,608.88
  5. Step 5: Solve for x
    x = 64,212,608.88/9,286.80
  6. Step 6: Final answer
    x = 6,914.40

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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.