Home / 14,307.94-21,461.50-3,919.69

Finding the Fourth Proportional to 14,307.94, 21,461.50 and 3,919.69

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Solution

The fourth proportional to 14,307.94, 21,461.50 and 3,919.69 is: 5,879.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,307.94 : 21,461.50 = 3,919.69 : x
  2. Step 2: Convert to fraction form
    14,307.94/21,461.50 = 3,919.69/x
  3. Step 3: Cross multiply
    14,307.94x = 21,461.50 × 3,919.69
  4. Step 4: Simplify right side
    14,307.94x = 84,122,426.94
  5. Step 5: Solve for x
    x = 84,122,426.94/14,307.94
  6. Step 6: Final answer
    x = 5,879.42

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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.