Home / 12,471.44-18,707.25-8,790.19

Finding the Fourth Proportional to 12,471.44, 18,707.25 and 8,790.19

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Solution

The fourth proportional to 12,471.44, 18,707.25 and 8,790.19 is: 13,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.44 : 18,707.25 = 8,790.19 : x
  2. Step 2: Convert to fraction form
    12,471.44/18,707.25 = 8,790.19/x
  3. Step 3: Cross multiply
    12,471.44x = 18,707.25 × 8,790.19
  4. Step 4: Simplify right side
    12,471.44x = 164,440,268.07
  5. Step 5: Solve for x
    x = 164,440,268.07/12,471.44
  6. Step 6: Final answer
    x = 13,185.35

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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.