Home / 9,728.16-13,424.88-5,536.44

Finding the Fourth Proportional to 9,728.16, 13,424.88 and 5,536.44

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Solution

The fourth proportional to 9,728.16, 13,424.88 and 5,536.44 is: 7,640.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,728.16 : 13,424.88 = 5,536.44 : x
  2. Step 2: Convert to fraction form
    9,728.16/13,424.88 = 5,536.44/x
  3. Step 3: Cross multiply
    9,728.16x = 13,424.88 × 5,536.44
  4. Step 4: Simplify right side
    9,728.16x = 74,326,042.63
  5. Step 5: Solve for x
    x = 74,326,042.63/9,728.16
  6. Step 6: Final answer
    x = 7,640.30

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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.