Home / 14,139.90-21,207.06-4,276.85

Finding the Fourth Proportional to 14,139.90, 21,207.06 and 4,276.85

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Solution

The fourth proportional to 14,139.90, 21,207.06 and 4,276.85 is: 6,414.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.90 : 21,207.06 = 4,276.85 : x
  2. Step 2: Convert to fraction form
    14,139.90/21,207.06 = 4,276.85/x
  3. Step 3: Cross multiply
    14,139.90x = 21,207.06 × 4,276.85
  4. Step 4: Simplify right side
    14,139.90x = 90,699,308.53
  5. Step 5: Solve for x
    x = 90,699,308.53/14,139.90
  6. Step 6: Final answer
    x = 6,414.42

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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.