Home / 14,226.56-21,350.72-6,440.80

Finding the Fourth Proportional to 14,226.56, 21,350.72 and 6,440.80

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Solution

The fourth proportional to 14,226.56, 21,350.72 and 6,440.80 is: 9,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,226.56 : 21,350.72 = 6,440.80 : x
  2. Step 2: Convert to fraction form
    14,226.56/21,350.72 = 6,440.80/x
  3. Step 3: Cross multiply
    14,226.56x = 21,350.72 × 6,440.80
  4. Step 4: Simplify right side
    14,226.56x = 137,515,717.38
  5. Step 5: Solve for x
    x = 137,515,717.38/14,226.56
  6. Step 6: Final answer
    x = 9,666.13

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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.