Home / 7,981.75-11,017.56-4,837.94

Finding the Fourth Proportional to 7,981.75, 11,017.56 and 4,837.94

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Solution

The fourth proportional to 7,981.75, 11,017.56 and 4,837.94 is: 6,678.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.75 : 11,017.56 = 4,837.94 : x
  2. Step 2: Convert to fraction form
    7,981.75/11,017.56 = 4,837.94/x
  3. Step 3: Cross multiply
    7,981.75x = 11,017.56 × 4,837.94
  4. Step 4: Simplify right side
    7,981.75x = 53,302,294.23
  5. Step 5: Solve for x
    x = 53,302,294.23/7,981.75
  6. Step 6: Final answer
    x = 6,678.02

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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.