Home / 14,118.48-21,172.62-4,254.69

Finding the Fourth Proportional to 14,118.48, 21,172.62 and 4,254.69

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Solution

The fourth proportional to 14,118.48, 21,172.62 and 4,254.69 is: 6,380.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.48 : 21,172.62 = 4,254.69 : x
  2. Step 2: Convert to fraction form
    14,118.48/21,172.62 = 4,254.69/x
  3. Step 3: Cross multiply
    14,118.48x = 21,172.62 × 4,254.69
  4. Step 4: Simplify right side
    14,118.48x = 90,082,934.59
  5. Step 5: Solve for x
    x = 90,082,934.59/14,118.48
  6. Step 6: Final answer
    x = 6,380.50

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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.