Home / 13,701.96-18,902.70-9,725.40

Finding the Fourth Proportional to 13,701.96, 18,902.70 and 9,725.40

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Solution

The fourth proportional to 13,701.96, 18,902.70 and 9,725.40 is: 13,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.96 : 18,902.70 = 9,725.40 : x
  2. Step 2: Convert to fraction form
    13,701.96/18,902.70 = 9,725.40/x
  3. Step 3: Cross multiply
    13,701.96x = 18,902.70 × 9,725.40
  4. Step 4: Simplify right side
    13,701.96x = 183,836,318.58
  5. Step 5: Solve for x
    x = 183,836,318.58/13,701.96
  6. Step 6: Final answer
    x = 13,416.79

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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.