Home / 9,388.16-12,940.80-7,292.96

Finding the Fourth Proportional to 9,388.16, 12,940.80 and 7,292.96

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Solution

The fourth proportional to 9,388.16, 12,940.80 and 7,292.96 is: 10,052.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,388.16 : 12,940.80 = 7,292.96 : x
  2. Step 2: Convert to fraction form
    9,388.16/12,940.80 = 7,292.96/x
  3. Step 3: Cross multiply
    9,388.16x = 12,940.80 × 7,292.96
  4. Step 4: Simplify right side
    9,388.16x = 94,376,736.77
  5. Step 5: Solve for x
    x = 94,376,736.77/9,388.16
  6. Step 6: Final answer
    x = 10,052.74

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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.