Home / 19,415.23-26,760.75-13,742.70

Finding the Fourth Proportional to 19,415.23, 26,760.75 and 13,742.70

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Solution

The fourth proportional to 19,415.23, 26,760.75 and 13,742.70 is: 18,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.23 : 26,760.75 = 13,742.70 : x
  2. Step 2: Convert to fraction form
    19,415.23/26,760.75 = 13,742.70/x
  3. Step 3: Cross multiply
    19,415.23x = 26,760.75 × 13,742.70
  4. Step 4: Simplify right side
    19,415.23x = 367,764,959.03
  5. Step 5: Solve for x
    x = 367,764,959.03/19,415.23
  6. Step 6: Final answer
    x = 18,942.09

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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.