Home / 19,147.28-26,422.78-10,415.72

Finding the Fourth Proportional to 19,147.28, 26,422.78 and 10,415.72

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Solution

The fourth proportional to 19,147.28, 26,422.78 and 10,415.72 is: 14,373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.28 : 26,422.78 = 10,415.72 : x
  2. Step 2: Convert to fraction form
    19,147.28/26,422.78 = 10,415.72/x
  3. Step 3: Cross multiply
    19,147.28x = 26,422.78 × 10,415.72
  4. Step 4: Simplify right side
    19,147.28x = 275,212,119.95
  5. Step 5: Solve for x
    x = 275,212,119.95/19,147.28
  6. Step 6: Final answer
    x = 14,373.44

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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.