Home / 14,284.11-21,429.79-4,288.80

Finding the Fourth Proportional to 14,284.11, 21,429.79 and 4,288.80

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Solution

The fourth proportional to 14,284.11, 21,429.79 and 4,288.80 is: 6,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,284.11 : 21,429.79 = 4,288.80 : x
  2. Step 2: Convert to fraction form
    14,284.11/21,429.79 = 4,288.80/x
  3. Step 3: Cross multiply
    14,284.11x = 21,429.79 × 4,288.80
  4. Step 4: Simplify right side
    14,284.11x = 91,908,083.35
  5. Step 5: Solve for x
    x = 91,908,083.35/14,284.11
  6. Step 6: Final answer
    x = 6,434.29

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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.