Home / 18,791.04-25,931.68-10,407.54

Finding the Fourth Proportional to 18,791.04, 25,931.68 and 10,407.54

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Solution

The fourth proportional to 18,791.04, 25,931.68 and 10,407.54 is: 14,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.04 : 25,931.68 = 10,407.54 : x
  2. Step 2: Convert to fraction form
    18,791.04/25,931.68 = 10,407.54/x
  3. Step 3: Cross multiply
    18,791.04x = 25,931.68 × 10,407.54
  4. Step 4: Simplify right side
    18,791.04x = 269,884,996.87
  5. Step 5: Solve for x
    x = 269,884,996.87/18,791.04
  6. Step 6: Final answer
    x = 14,362.43

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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.