Home / 14,108.36-21,159.86-7,086.49

Finding the Fourth Proportional to 14,108.36, 21,159.86 and 7,086.49

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Solution

The fourth proportional to 14,108.36, 21,159.86 and 7,086.49 is: 10,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.36 : 21,159.86 = 7,086.49 : x
  2. Step 2: Convert to fraction form
    14,108.36/21,159.86 = 7,086.49/x
  3. Step 3: Cross multiply
    14,108.36x = 21,159.86 × 7,086.49
  4. Step 4: Simplify right side
    14,108.36x = 149,949,047.96
  5. Step 5: Solve for x
    x = 149,949,047.96/14,108.36
  6. Step 6: Final answer
    x = 10,628.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.