Home / 18,393.19-25,378.75-11,670.91

Finding the Fourth Proportional to 18,393.19, 25,378.75 and 11,670.91

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Solution

The fourth proportional to 18,393.19, 25,378.75 and 11,670.91 is: 16,103.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.19 : 25,378.75 = 11,670.91 : x
  2. Step 2: Convert to fraction form
    18,393.19/25,378.75 = 11,670.91/x
  3. Step 3: Cross multiply
    18,393.19x = 25,378.75 × 11,670.91
  4. Step 4: Simplify right side
    18,393.19x = 296,193,107.16
  5. Step 5: Solve for x
    x = 296,193,107.16/18,393.19
  6. Step 6: Final answer
    x = 16,103.41

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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.