Home / 12,609.27-18,910.87-5,585.40

Finding the Fourth Proportional to 12,609.27, 18,910.87 and 5,585.40

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Solution

The fourth proportional to 12,609.27, 18,910.87 and 5,585.40 is: 8,376.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.27 : 18,910.87 = 5,585.40 : x
  2. Step 2: Convert to fraction form
    12,609.27/18,910.87 = 5,585.40/x
  3. Step 3: Cross multiply
    12,609.27x = 18,910.87 × 5,585.40
  4. Step 4: Simplify right side
    12,609.27x = 105,624,759.33
  5. Step 5: Solve for x
    x = 105,624,759.33/12,609.27
  6. Step 6: Final answer
    x = 8,376.75

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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.