Home / 13,892.78-19,171.35-7,924.23

Finding the Fourth Proportional to 13,892.78, 19,171.35 and 7,924.23

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Solution

The fourth proportional to 13,892.78, 19,171.35 and 7,924.23 is: 10,935.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.78 : 19,171.35 = 7,924.23 : x
  2. Step 2: Convert to fraction form
    13,892.78/19,171.35 = 7,924.23/x
  3. Step 3: Cross multiply
    13,892.78x = 19,171.35 × 7,924.23
  4. Step 4: Simplify right side
    13,892.78x = 151,918,186.81
  5. Step 5: Solve for x
    x = 151,918,186.81/13,892.78
  6. Step 6: Final answer
    x = 10,935.04

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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.