Home / 14,119.25-19,485.45-8,151.30

Finding the Fourth Proportional to 14,119.25, 19,485.45 and 8,151.30

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Solution

The fourth proportional to 14,119.25, 19,485.45 and 8,151.30 is: 11,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.25 : 19,485.45 = 8,151.30 : x
  2. Step 2: Convert to fraction form
    14,119.25/19,485.45 = 8,151.30/x
  3. Step 3: Cross multiply
    14,119.25x = 19,485.45 × 8,151.30
  4. Step 4: Simplify right side
    14,119.25x = 158,831,748.59
  5. Step 5: Solve for x
    x = 158,831,748.59/14,119.25
  6. Step 6: Final answer
    x = 11,249.31

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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.