Home / 18,666.36-25,758.81-10,168.31

Finding the Fourth Proportional to 18,666.36, 25,758.81 and 10,168.31

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Solution

The fourth proportional to 18,666.36, 25,758.81 and 10,168.31 is: 14,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.36 : 25,758.81 = 10,168.31 : x
  2. Step 2: Convert to fraction form
    18,666.36/25,758.81 = 10,168.31/x
  3. Step 3: Cross multiply
    18,666.36x = 25,758.81 × 10,168.31
  4. Step 4: Simplify right side
    18,666.36x = 261,923,629.71
  5. Step 5: Solve for x
    x = 261,923,629.71/18,666.36
  6. Step 6: Final answer
    x = 14,031.85

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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.