Home / 9,146.36-12,622.43-5,168.75

Finding the Fourth Proportional to 9,146.36, 12,622.43 and 5,168.75

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Solution

The fourth proportional to 9,146.36, 12,622.43 and 5,168.75 is: 7,133.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,146.36 : 12,622.43 = 5,168.75 : x
  2. Step 2: Convert to fraction form
    9,146.36/12,622.43 = 5,168.75/x
  3. Step 3: Cross multiply
    9,146.36x = 12,622.43 × 5,168.75
  4. Step 4: Simplify right side
    9,146.36x = 65,242,096.11
  5. Step 5: Solve for x
    x = 65,242,096.11/9,146.36
  6. Step 6: Final answer
    x = 7,133.13

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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.