Home / 13,590.96-20,408.93-9,176.96

Finding the Fourth Proportional to 13,590.96, 20,408.93 and 9,176.96

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Solution

The fourth proportional to 13,590.96, 20,408.93 and 9,176.96 is: 13,780.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.96 : 20,408.93 = 9,176.96 : x
  2. Step 2: Convert to fraction form
    13,590.96/20,408.93 = 9,176.96/x
  3. Step 3: Cross multiply
    13,590.96x = 20,408.93 × 9,176.96
  4. Step 4: Simplify right side
    13,590.96x = 187,291,973.80
  5. Step 5: Solve for x
    x = 187,291,973.80/13,590.96
  6. Step 6: Final answer
    x = 13,780.63

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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.