Home / 8,790.95-13,185.74-3,243.26

Finding the Fourth Proportional to 8,790.95, 13,185.74 and 3,243.26

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Solution

The fourth proportional to 8,790.95, 13,185.74 and 3,243.26 is: 4,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.95 : 13,185.74 = 3,243.26 : x
  2. Step 2: Convert to fraction form
    8,790.95/13,185.74 = 3,243.26/x
  3. Step 3: Cross multiply
    8,790.95x = 13,185.74 × 3,243.26
  4. Step 4: Simplify right side
    8,790.95x = 42,764,700.97
  5. Step 5: Solve for x
    x = 42,764,700.97/8,790.95
  6. Step 6: Final answer
    x = 4,864.63

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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.