Home / 14,145.10-21,217.70-4,284.46

Finding the Fourth Proportional to 14,145.10, 21,217.70 and 4,284.46

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Solution

The fourth proportional to 14,145.10, 21,217.70 and 4,284.46 is: 6,426.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.10 : 21,217.70 = 4,284.46 : x
  2. Step 2: Convert to fraction form
    14,145.10/21,217.70 = 4,284.46/x
  3. Step 3: Cross multiply
    14,145.10x = 21,217.70 × 4,284.46
  4. Step 4: Simplify right side
    14,145.10x = 90,906,386.94
  5. Step 5: Solve for x
    x = 90,906,386.94/14,145.10
  6. Step 6: Final answer
    x = 6,426.71

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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.