Home / 7,868.88-10,858.15-4,511.54

Finding the Fourth Proportional to 7,868.88, 10,858.15 and 4,511.54

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Solution

The fourth proportional to 7,868.88, 10,858.15 and 4,511.54 is: 6,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.88 : 10,858.15 = 4,511.54 : x
  2. Step 2: Convert to fraction form
    7,868.88/10,858.15 = 4,511.54/x
  3. Step 3: Cross multiply
    7,868.88x = 10,858.15 × 4,511.54
  4. Step 4: Simplify right side
    7,868.88x = 48,986,978.05
  5. Step 5: Solve for x
    x = 48,986,978.05/7,868.88
  6. Step 6: Final answer
    x = 6,225.41

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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.