Home / 10,272.66-15,415.74-6,379.80

Finding the Fourth Proportional to 10,272.66, 15,415.74 and 6,379.80

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Solution

The fourth proportional to 10,272.66, 15,415.74 and 6,379.80 is: 9,573.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.66 : 15,415.74 = 6,379.80 : x
  2. Step 2: Convert to fraction form
    10,272.66/15,415.74 = 6,379.80/x
  3. Step 3: Cross multiply
    10,272.66x = 15,415.74 × 6,379.80
  4. Step 4: Simplify right side
    10,272.66x = 98,349,338.05
  5. Step 5: Solve for x
    x = 98,349,338.05/10,272.66
  6. Step 6: Final answer
    x = 9,573.89

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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.