Home / 7,743.36-11,638.08-3,642.24

Finding the Fourth Proportional to 7,743.36, 11,638.08 and 3,642.24

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Solution

The fourth proportional to 7,743.36, 11,638.08 and 3,642.24 is: 5,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.36 : 11,638.08 = 3,642.24 : x
  2. Step 2: Convert to fraction form
    7,743.36/11,638.08 = 3,642.24/x
  3. Step 3: Cross multiply
    7,743.36x = 11,638.08 × 3,642.24
  4. Step 4: Simplify right side
    7,743.36x = 42,388,680.50
  5. Step 5: Solve for x
    x = 42,388,680.50/7,743.36
  6. Step 6: Final answer
    x = 5,474.20

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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.