Home / 12,971.64-19,427.22-12,874.44

Finding the Fourth Proportional to 12,971.64, 19,427.22 and 12,874.44

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Solution

The fourth proportional to 12,971.64, 19,427.22 and 12,874.44 is: 19,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.64 : 19,427.22 = 12,874.44 : x
  2. Step 2: Convert to fraction form
    12,971.64/19,427.22 = 12,874.44/x
  3. Step 3: Cross multiply
    12,971.64x = 19,427.22 × 12,874.44
  4. Step 4: Simplify right side
    12,971.64x = 250,114,578.26
  5. Step 5: Solve for x
    x = 250,114,578.26/12,971.64
  6. Step 6: Final answer
    x = 19,281.65

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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.