Home / 14,269.80-21,404.30-6,478.60

Finding the Fourth Proportional to 14,269.80, 21,404.30 and 6,478.60

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Solution

The fourth proportional to 14,269.80, 21,404.30 and 6,478.60 is: 9,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269.80 : 21,404.30 = 6,478.60 : x
  2. Step 2: Convert to fraction form
    14,269.80/21,404.30 = 6,478.60/x
  3. Step 3: Cross multiply
    14,269.80x = 21,404.30 × 6,478.60
  4. Step 4: Simplify right side
    14,269.80x = 138,669,897.98
  5. Step 5: Solve for x
    x = 138,669,897.98/14,269.80
  6. Step 6: Final answer
    x = 9,717.72

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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.