Home / 14,853.36-20,497.68-8,139.36

Finding the Fourth Proportional to 14,853.36, 20,497.68 and 8,139.36

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Solution

The fourth proportional to 14,853.36, 20,497.68 and 8,139.36 is: 11,232.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,853.36 : 20,497.68 = 8,139.36 : x
  2. Step 2: Convert to fraction form
    14,853.36/20,497.68 = 8,139.36/x
  3. Step 3: Cross multiply
    14,853.36x = 20,497.68 × 8,139.36
  4. Step 4: Simplify right side
    14,853.36x = 166,837,996.68
  5. Step 5: Solve for x
    x = 166,837,996.68/14,853.36
  6. Step 6: Final answer
    x = 11,232.34

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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.