Home / 7,895.78-11,837.59-4,775.05

Finding the Fourth Proportional to 7,895.78, 11,837.59 and 4,775.05

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Solution

The fourth proportional to 7,895.78, 11,837.59 and 4,775.05 is: 7,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.78 : 11,837.59 = 4,775.05 : x
  2. Step 2: Convert to fraction form
    7,895.78/11,837.59 = 4,775.05/x
  3. Step 3: Cross multiply
    7,895.78x = 11,837.59 × 4,775.05
  4. Step 4: Simplify right side
    7,895.78x = 56,525,113.85
  5. Step 5: Solve for x
    x = 56,525,113.85/7,895.78
  6. Step 6: Final answer
    x = 7,158.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.