Home / 11,089.62-15,282.63-7,940.34

Finding the Fourth Proportional to 11,089.62, 15,282.63 and 7,940.34

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Solution

The fourth proportional to 11,089.62, 15,282.63 and 7,940.34 is: 10,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.62 : 15,282.63 = 7,940.34 : x
  2. Step 2: Convert to fraction form
    11,089.62/15,282.63 = 7,940.34/x
  3. Step 3: Cross multiply
    11,089.62x = 15,282.63 × 7,940.34
  4. Step 4: Simplify right side
    11,089.62x = 121,349,278.29
  5. Step 5: Solve for x
    x = 121,349,278.29/11,089.62
  6. Step 6: Final answer
    x = 10,942.60

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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.