Home / 18,927.63-26,130.62-11,375.79

Finding the Fourth Proportional to 18,927.63, 26,130.62 and 11,375.79

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Solution

The fourth proportional to 18,927.63, 26,130.62 and 11,375.79 is: 15,704.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.63 : 26,130.62 = 11,375.79 : x
  2. Step 2: Convert to fraction form
    18,927.63/26,130.62 = 11,375.79/x
  3. Step 3: Cross multiply
    18,927.63x = 26,130.62 × 11,375.79
  4. Step 4: Simplify right side
    18,927.63x = 297,256,388.81
  5. Step 5: Solve for x
    x = 297,256,388.81/18,927.63
  6. Step 6: Final answer
    x = 15,704.89

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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.