Home / 9,128.16-12,596.82-4,936.40

Finding the Fourth Proportional to 9,128.16, 12,596.82 and 4,936.40

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Solution

The fourth proportional to 9,128.16, 12,596.82 and 4,936.40 is: 6,812.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.16 : 12,596.82 = 4,936.40 : x
  2. Step 2: Convert to fraction form
    9,128.16/12,596.82 = 4,936.40/x
  3. Step 3: Cross multiply
    9,128.16x = 12,596.82 × 4,936.40
  4. Step 4: Simplify right side
    9,128.16x = 62,182,942.25
  5. Step 5: Solve for x
    x = 62,182,942.25/9,128.16
  6. Step 6: Final answer
    x = 6,812.21

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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.