Home / 12,363.18-18,539.77-7,676.25

Finding the Fourth Proportional to 12,363.18, 18,539.77 and 7,676.25

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Solution

The fourth proportional to 12,363.18, 18,539.77 and 7,676.25 is: 11,511.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.18 : 18,539.77 = 7,676.25 : x
  2. Step 2: Convert to fraction form
    12,363.18/18,539.77 = 7,676.25/x
  3. Step 3: Cross multiply
    12,363.18x = 18,539.77 × 7,676.25
  4. Step 4: Simplify right side
    12,363.18x = 142,315,909.46
  5. Step 5: Solve for x
    x = 142,315,909.46/12,363.18
  6. Step 6: Final answer
    x = 11,511.27

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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.