Home / 18,937.82-26,134.19-10,440.09

Finding the Fourth Proportional to 18,937.82, 26,134.19 and 10,440.09

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Solution

The fourth proportional to 18,937.82, 26,134.19 and 10,440.09 is: 14,407.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.82 : 26,134.19 = 10,440.09 : x
  2. Step 2: Convert to fraction form
    18,937.82/26,134.19 = 10,440.09/x
  3. Step 3: Cross multiply
    18,937.82x = 26,134.19 × 10,440.09
  4. Step 4: Simplify right side
    18,937.82x = 272,843,282.63
  5. Step 5: Solve for x
    x = 272,843,282.63/18,937.82
  6. Step 6: Final answer
    x = 14,407.32

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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.