Home / 12,837.90-19,256.67-4,072.80

Finding the Fourth Proportional to 12,837.90, 19,256.67 and 4,072.80

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Solution

The fourth proportional to 12,837.90, 19,256.67 and 4,072.80 is: 6,109.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.90 : 19,256.67 = 4,072.80 : x
  2. Step 2: Convert to fraction form
    12,837.90/19,256.67 = 4,072.80/x
  3. Step 3: Cross multiply
    12,837.90x = 19,256.67 × 4,072.80
  4. Step 4: Simplify right side
    12,837.90x = 78,428,565.58
  5. Step 5: Solve for x
    x = 78,428,565.58/12,837.90
  6. Step 6: Final answer
    x = 6,109.14

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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.