Home / 14,519.21-20,035.30-8,144.91

Finding the Fourth Proportional to 14,519.21, 20,035.30 and 8,144.91

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Solution

The fourth proportional to 14,519.21, 20,035.30 and 8,144.91 is: 11,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,519.21 : 20,035.30 = 8,144.91 : x
  2. Step 2: Convert to fraction form
    14,519.21/20,035.30 = 8,144.91/x
  3. Step 3: Cross multiply
    14,519.21x = 20,035.30 × 8,144.91
  4. Step 4: Simplify right side
    14,519.21x = 163,185,715.32
  5. Step 5: Solve for x
    x = 163,185,715.32/14,519.21
  6. Step 6: Final answer
    x = 11,239.30

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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.