Home / 13,837.30-19,100.40-8,172.07

Finding the Fourth Proportional to 13,837.30, 19,100.40 and 8,172.07

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Solution

The fourth proportional to 13,837.30, 19,100.40 and 8,172.07 is: 11,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.30 : 19,100.40 = 8,172.07 : x
  2. Step 2: Convert to fraction form
    13,837.30/19,100.40 = 8,172.07/x
  3. Step 3: Cross multiply
    13,837.30x = 19,100.40 × 8,172.07
  4. Step 4: Simplify right side
    13,837.30x = 156,089,805.83
  5. Step 5: Solve for x
    x = 156,089,805.83/13,837.30
  6. Step 6: Final answer
    x = 11,280.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.