Home / 14,197.44-21,263.76-12,115.20

Finding the Fourth Proportional to 14,197.44, 21,263.76 and 12,115.20

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Solution

The fourth proportional to 14,197.44, 21,263.76 and 12,115.20 is: 18,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,197.44 : 21,263.76 = 12,115.20 : x
  2. Step 2: Convert to fraction form
    14,197.44/21,263.76 = 12,115.20/x
  3. Step 3: Cross multiply
    14,197.44x = 21,263.76 × 12,115.20
  4. Step 4: Simplify right side
    14,197.44x = 257,614,705.15
  5. Step 5: Solve for x
    x = 257,614,705.15/14,197.44
  6. Step 6: Final answer
    x = 18,145.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.