Home / 14,129.88-21,196.58-4,269.12

Finding the Fourth Proportional to 14,129.88, 21,196.58 and 4,269.12

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Solution

The fourth proportional to 14,129.88, 21,196.58 and 4,269.12 is: 6,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.88 : 21,196.58 = 4,269.12 : x
  2. Step 2: Convert to fraction form
    14,129.88/21,196.58 = 4,269.12/x
  3. Step 3: Cross multiply
    14,129.88x = 21,196.58 × 4,269.12
  4. Step 4: Simplify right side
    14,129.88x = 90,490,722.26
  5. Step 5: Solve for x
    x = 90,490,722.26/14,129.88
  6. Step 6: Final answer
    x = 6,404.21

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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.