Home / 12,148.77-16,765.64-6,843.78

Finding the Fourth Proportional to 12,148.77, 16,765.64 and 6,843.78

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Solution

The fourth proportional to 12,148.77, 16,765.64 and 6,843.78 is: 9,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.77 : 16,765.64 = 6,843.78 : x
  2. Step 2: Convert to fraction form
    12,148.77/16,765.64 = 6,843.78/x
  3. Step 3: Cross multiply
    12,148.77x = 16,765.64 × 6,843.78
  4. Step 4: Simplify right side
    12,148.77x = 114,740,317.50
  5. Step 5: Solve for x
    x = 114,740,317.50/12,148.77
  6. Step 6: Final answer
    x = 9,444.60

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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.