Home / 7,440.36-11,160.72-6,139.44

Finding the Fourth Proportional to 7,440.36, 11,160.72 and 6,139.44

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Solution

The fourth proportional to 7,440.36, 11,160.72 and 6,139.44 is: 9,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.36 : 11,160.72 = 6,139.44 : x
  2. Step 2: Convert to fraction form
    7,440.36/11,160.72 = 6,139.44/x
  3. Step 3: Cross multiply
    7,440.36x = 11,160.72 × 6,139.44
  4. Step 4: Simplify right side
    7,440.36x = 68,520,570.80
  5. Step 5: Solve for x
    x = 68,520,570.80/7,440.36
  6. Step 6: Final answer
    x = 9,209.31

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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.