Home / 18,908.40-26,093.16-11,838.72

Finding the Fourth Proportional to 18,908.40, 26,093.16 and 11,838.72

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Solution

The fourth proportional to 18,908.40, 26,093.16 and 11,838.72 is: 16,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.40 : 26,093.16 = 11,838.72 : x
  2. Step 2: Convert to fraction form
    18,908.40/26,093.16 = 11,838.72/x
  3. Step 3: Cross multiply
    18,908.40x = 26,093.16 × 11,838.72
  4. Step 4: Simplify right side
    18,908.40x = 308,909,615.16
  5. Step 5: Solve for x
    x = 308,909,615.16/18,908.40
  6. Step 6: Final answer
    x = 16,337.16

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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.