Home / 12,971.22-19,454.67-4,649.69

Finding the Fourth Proportional to 12,971.22, 19,454.67 and 4,649.69

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Solution

The fourth proportional to 12,971.22, 19,454.67 and 4,649.69 is: 6,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.22 : 19,454.67 = 4,649.69 : x
  2. Step 2: Convert to fraction form
    12,971.22/19,454.67 = 4,649.69/x
  3. Step 3: Cross multiply
    12,971.22x = 19,454.67 × 4,649.69
  4. Step 4: Simplify right side
    12,971.22x = 90,458,087.28
  5. Step 5: Solve for x
    x = 90,458,087.28/12,971.22
  6. Step 6: Final answer
    x = 6,973.75

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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.