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Finding the Fourth Proportional to 7,918.87, 11,878.11 and 4,592.08

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Solution

The fourth proportional to 7,918.87, 11,878.11 and 4,592.08 is: 6,888.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.87 : 11,878.11 = 4,592.08 : x
  2. Step 2: Convert to fraction form
    7,918.87/11,878.11 = 4,592.08/x
  3. Step 3: Cross multiply
    7,918.87x = 11,878.11 × 4,592.08
  4. Step 4: Simplify right side
    7,918.87x = 54,545,231.37
  5. Step 5: Solve for x
    x = 54,545,231.37/7,918.87
  6. Step 6: Final answer
    x = 6,888.01

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1.5x scale

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.