Home / 14,255.35-19,672.26-8,206.78

Finding the Fourth Proportional to 14,255.35, 19,672.26 and 8,206.78

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Solution

The fourth proportional to 14,255.35, 19,672.26 and 8,206.78 is: 11,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.35 : 19,672.26 = 8,206.78 : x
  2. Step 2: Convert to fraction form
    14,255.35/19,672.26 = 8,206.78/x
  3. Step 3: Cross multiply
    14,255.35x = 19,672.26 × 8,206.78
  4. Step 4: Simplify right side
    14,255.35x = 161,445,832.08
  5. Step 5: Solve for x
    x = 161,445,832.08/14,255.35
  6. Step 6: Final answer
    x = 11,325.28

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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.