Home / 11,400.08-15,747.30-9,170.37

Finding the Fourth Proportional to 11,400.08, 15,747.30 and 9,170.37

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Solution

The fourth proportional to 11,400.08, 15,747.30 and 9,170.37 is: 12,667.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.08 : 15,747.30 = 9,170.37 : x
  2. Step 2: Convert to fraction form
    11,400.08/15,747.30 = 9,170.37/x
  3. Step 3: Cross multiply
    11,400.08x = 15,747.30 × 9,170.37
  4. Step 4: Simplify right side
    11,400.08x = 144,408,567.50
  5. Step 5: Solve for x
    x = 144,408,567.50/11,400.08
  6. Step 6: Final answer
    x = 12,667.33

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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.