Home / 13,394.57-18,485.01-10,031.45

Finding the Fourth Proportional to 13,394.57, 18,485.01 and 10,031.45

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Solution

The fourth proportional to 13,394.57, 18,485.01 and 10,031.45 is: 13,843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.57 : 18,485.01 = 10,031.45 : x
  2. Step 2: Convert to fraction form
    13,394.57/18,485.01 = 10,031.45/x
  3. Step 3: Cross multiply
    13,394.57x = 18,485.01 × 10,031.45
  4. Step 4: Simplify right side
    13,394.57x = 185,431,361.14
  5. Step 5: Solve for x
    x = 185,431,361.14/13,394.57
  6. Step 6: Final answer
    x = 13,843.78

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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.