Home / 9,128.39-12,597.09-4,936.64

Finding the Fourth Proportional to 9,128.39, 12,597.09 and 4,936.64

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Solution

The fourth proportional to 9,128.39, 12,597.09 and 4,936.64 is: 6,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.39 : 12,597.09 = 4,936.64 : x
  2. Step 2: Convert to fraction form
    9,128.39/12,597.09 = 4,936.64/x
  3. Step 3: Cross multiply
    9,128.39x = 12,597.09 × 4,936.64
  4. Step 4: Simplify right side
    9,128.39x = 62,187,235.39
  5. Step 5: Solve for x
    x = 62,187,235.39/9,128.39
  6. Step 6: Final answer
    x = 6,812.51

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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.