Home / 14,085.09-19,438.20-8,117.64

Finding the Fourth Proportional to 14,085.09, 19,438.20 and 8,117.64

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Solution

The fourth proportional to 14,085.09, 19,438.20 and 8,117.64 is: 11,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.09 : 19,438.20 = 8,117.64 : x
  2. Step 2: Convert to fraction form
    14,085.09/19,438.20 = 8,117.64/x
  3. Step 3: Cross multiply
    14,085.09x = 19,438.20 × 8,117.64
  4. Step 4: Simplify right side
    14,085.09x = 157,792,309.85
  5. Step 5: Solve for x
    x = 157,792,309.85/14,085.09
  6. Step 6: Final answer
    x = 11,202.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.