Home / 8,290.71-12,436.08-3,360.45

Finding the Fourth Proportional to 8,290.71, 12,436.08 and 3,360.45

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Solution

The fourth proportional to 8,290.71, 12,436.08 and 3,360.45 is: 5,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.71 : 12,436.08 = 3,360.45 : x
  2. Step 2: Convert to fraction form
    8,290.71/12,436.08 = 3,360.45/x
  3. Step 3: Cross multiply
    8,290.71x = 12,436.08 × 3,360.45
  4. Step 4: Simplify right side
    8,290.71x = 41,790,825.04
  5. Step 5: Solve for x
    x = 41,790,825.04/8,290.71
  6. Step 6: Final answer
    x = 5,040.68

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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.