Home / 7,868.18-10,858.09-4,331.39

Finding the Fourth Proportional to 7,868.18, 10,858.09 and 4,331.39

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Solution

The fourth proportional to 7,868.18, 10,858.09 and 4,331.39 is: 5,977.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.18 : 10,858.09 = 4,331.39 : x
  2. Step 2: Convert to fraction form
    7,868.18/10,858.09 = 4,331.39/x
  3. Step 3: Cross multiply
    7,868.18x = 10,858.09 × 4,331.39
  4. Step 4: Simplify right side
    7,868.18x = 47,030,636.02
  5. Step 5: Solve for x
    x = 47,030,636.02/7,868.18
  6. Step 6: Final answer
    x = 5,977.32

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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.