Home / 9,153.75-13,722.48-3,309.06

Finding the Fourth Proportional to 9,153.75, 13,722.48 and 3,309.06

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Solution

The fourth proportional to 9,153.75, 13,722.48 and 3,309.06 is: 4,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.75 : 13,722.48 = 3,309.06 : x
  2. Step 2: Convert to fraction form
    9,153.75/13,722.48 = 3,309.06/x
  3. Step 3: Cross multiply
    9,153.75x = 13,722.48 × 3,309.06
  4. Step 4: Simplify right side
    9,153.75x = 45,408,509.67
  5. Step 5: Solve for x
    x = 45,408,509.67/9,153.75
  6. Step 6: Final answer
    x = 4,960.65

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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.