Home / 12,083.64-16,675.50-6,778.32

Finding the Fourth Proportional to 12,083.64, 16,675.50 and 6,778.32

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Solution

The fourth proportional to 12,083.64, 16,675.50 and 6,778.32 is: 9,354.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.64 : 16,675.50 = 6,778.32 : x
  2. Step 2: Convert to fraction form
    12,083.64/16,675.50 = 6,778.32/x
  3. Step 3: Cross multiply
    12,083.64x = 16,675.50 × 6,778.32
  4. Step 4: Simplify right side
    12,083.64x = 113,031,875.16
  5. Step 5: Solve for x
    x = 113,031,875.16/12,083.64
  6. Step 6: Final answer
    x = 9,354.12

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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.