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Finding the Fourth Proportional to 9,257, 12,759.12 and 7,018.16

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Solution

The fourth proportional to 9,257, 12,759.12 and 7,018.16 is: 9,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,257 : 12,759.12 = 7,018.16 : x
  2. Step 2: Convert to fraction form
    9,257/12,759.12 = 7,018.16/x
  3. Step 3: Cross multiply
    9,257x = 12,759.12 × 7,018.16
  4. Step 4: Simplify right side
    9,257x = 89,545,545.62
  5. Step 5: Solve for x
    x = 89,545,545.62/9,257
  6. Step 6: Final answer
    x = 9,673.28

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Double scale
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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.