Home / 9,159.72-13,745.22-3,612.12

Finding the Fourth Proportional to 9,159.72, 13,745.22 and 3,612.12

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Solution

The fourth proportional to 9,159.72, 13,745.22 and 3,612.12 is: 5,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.72 : 13,745.22 = 3,612.12 : x
  2. Step 2: Convert to fraction form
    9,159.72/13,745.22 = 3,612.12/x
  3. Step 3: Cross multiply
    9,159.72x = 13,745.22 × 3,612.12
  4. Step 4: Simplify right side
    9,159.72x = 49,649,384.07
  5. Step 5: Solve for x
    x = 49,649,384.07/9,159.72
  6. Step 6: Final answer
    x = 5,420.40

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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.