Home / 14,221.84-21,330.88-4,226.38

Finding the Fourth Proportional to 14,221.84, 21,330.88 and 4,226.38

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Solution

The fourth proportional to 14,221.84, 21,330.88 and 4,226.38 is: 6,339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.84 : 21,330.88 = 4,226.38 : x
  2. Step 2: Convert to fraction form
    14,221.84/21,330.88 = 4,226.38/x
  3. Step 3: Cross multiply
    14,221.84x = 21,330.88 × 4,226.38
  4. Step 4: Simplify right side
    14,221.84x = 90,152,404.61
  5. Step 5: Solve for x
    x = 90,152,404.61/14,221.84
  6. Step 6: Final answer
    x = 6,339.01

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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.