Home / 13,837.12-19,088.24-9,119.68

Finding the Fourth Proportional to 13,837.12, 19,088.24 and 9,119.68

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Solution

The fourth proportional to 13,837.12, 19,088.24 and 9,119.68 is: 12,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.12 : 19,088.24 = 9,119.68 : x
  2. Step 2: Convert to fraction form
    13,837.12/19,088.24 = 9,119.68/x
  3. Step 3: Cross multiply
    13,837.12x = 19,088.24 × 9,119.68
  4. Step 4: Simplify right side
    13,837.12x = 174,078,640.56
  5. Step 5: Solve for x
    x = 174,078,640.56/13,837.12
  6. Step 6: Final answer
    x = 12,580.55

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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.