Home / 10,611.08-15,918.42-4,771.79

Finding the Fourth Proportional to 10,611.08, 15,918.42 and 4,771.79

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Solution

The fourth proportional to 10,611.08, 15,918.42 and 4,771.79 is: 7,158.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.08 : 15,918.42 = 4,771.79 : x
  2. Step 2: Convert to fraction form
    10,611.08/15,918.42 = 4,771.79/x
  3. Step 3: Cross multiply
    10,611.08x = 15,918.42 × 4,771.79
  4. Step 4: Simplify right side
    10,611.08x = 75,959,357.37
  5. Step 5: Solve for x
    x = 75,959,357.37/10,611.08
  6. Step 6: Final answer
    x = 7,158.49

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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.