Home / 13,383.39-18,439.35-8,838.00

Finding the Fourth Proportional to 13,383.39, 18,439.35 and 8,838.00

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Solution

The fourth proportional to 13,383.39, 18,439.35 and 8,838.00 is: 12,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.39 : 18,439.35 = 8,838.00 : x
  2. Step 2: Convert to fraction form
    13,383.39/18,439.35 = 8,838.00/x
  3. Step 3: Cross multiply
    13,383.39x = 18,439.35 × 8,838.00
  4. Step 4: Simplify right side
    13,383.39x = 162,966,994.02
  5. Step 5: Solve for x
    x = 162,966,994.02/13,383.39
  6. Step 6: Final answer
    x = 12,176.81

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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.