Home / 9,148.46-12,623.48-5,168.12

Finding the Fourth Proportional to 9,148.46, 12,623.48 and 5,168.12

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Solution

The fourth proportional to 9,148.46, 12,623.48 and 5,168.12 is: 7,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.46 : 12,623.48 = 5,168.12 : x
  2. Step 2: Convert to fraction form
    9,148.46/12,623.48 = 5,168.12/x
  3. Step 3: Cross multiply
    9,148.46x = 12,623.48 × 5,168.12
  4. Step 4: Simplify right side
    9,148.46x = 65,239,703.94
  5. Step 5: Solve for x
    x = 65,239,703.94/9,148.46
  6. Step 6: Final answer
    x = 7,131.22

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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.