Home / 7,518.44-11,271.57-3,139.17

Finding the Fourth Proportional to 7,518.44, 11,271.57 and 3,139.17

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Solution

The fourth proportional to 7,518.44, 11,271.57 and 3,139.17 is: 4,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.44 : 11,271.57 = 3,139.17 : x
  2. Step 2: Convert to fraction form
    7,518.44/11,271.57 = 3,139.17/x
  3. Step 3: Cross multiply
    7,518.44x = 11,271.57 × 3,139.17
  4. Step 4: Simplify right side
    7,518.44x = 35,383,374.40
  5. Step 5: Solve for x
    x = 35,383,374.40/7,518.44
  6. Step 6: Final answer
    x = 4,706.22

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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.