Home / 14,795.33-20,415.71-8,422.74

Finding the Fourth Proportional to 14,795.33, 20,415.71 and 8,422.74

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Solution

The fourth proportional to 14,795.33, 20,415.71 and 8,422.74 is: 11,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,795.33 : 20,415.71 = 8,422.74 : x
  2. Step 2: Convert to fraction form
    14,795.33/20,415.71 = 8,422.74/x
  3. Step 3: Cross multiply
    14,795.33x = 20,415.71 × 8,422.74
  4. Step 4: Simplify right side
    14,795.33x = 171,956,238.30
  5. Step 5: Solve for x
    x = 171,956,238.30/14,795.33
  6. Step 6: Final answer
    x = 11,622.34

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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.