Home / 9,903.75-13,667.45-5,712.27

Finding the Fourth Proportional to 9,903.75, 13,667.45 and 5,712.27

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Solution

The fourth proportional to 9,903.75, 13,667.45 and 5,712.27 is: 7,883.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.75 : 13,667.45 = 5,712.27 : x
  2. Step 2: Convert to fraction form
    9,903.75/13,667.45 = 5,712.27/x
  3. Step 3: Cross multiply
    9,903.75x = 13,667.45 × 5,712.27
  4. Step 4: Simplify right side
    9,903.75x = 78,072,136.05
  5. Step 5: Solve for x
    x = 78,072,136.05/9,903.75
  6. Step 6: Final answer
    x = 7,883.09

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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.