Home / 13,874.09-19,140.85-8,837.41

Finding the Fourth Proportional to 13,874.09, 19,140.85 and 8,837.41

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Solution

The fourth proportional to 13,874.09, 19,140.85 and 8,837.41 is: 12,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.09 : 19,140.85 = 8,837.41 : x
  2. Step 2: Convert to fraction form
    13,874.09/19,140.85 = 8,837.41/x
  3. Step 3: Cross multiply
    13,874.09x = 19,140.85 × 8,837.41
  4. Step 4: Simplify right side
    13,874.09x = 169,155,539.20
  5. Step 5: Solve for x
    x = 169,155,539.20/13,874.09
  6. Step 6: Final answer
    x = 12,192.19

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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.