Home / 10,982.39-15,155.77-6,137.12

Finding the Fourth Proportional to 10,982.39, 15,155.77 and 6,137.12

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Solution

The fourth proportional to 10,982.39, 15,155.77 and 6,137.12 is: 8,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.39 : 15,155.77 = 6,137.12 : x
  2. Step 2: Convert to fraction form
    10,982.39/15,155.77 = 6,137.12/x
  3. Step 3: Cross multiply
    10,982.39x = 15,155.77 × 6,137.12
  4. Step 4: Simplify right side
    10,982.39x = 93,012,779.18
  5. Step 5: Solve for x
    x = 93,012,779.18/10,982.39
  6. Step 6: Final answer
    x = 8,469.27

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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.