Home / 12,285.20-16,954.19-6,909.33

Finding the Fourth Proportional to 12,285.20, 16,954.19 and 6,909.33

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Solution

The fourth proportional to 12,285.20, 16,954.19 and 6,909.33 is: 9,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.20 : 16,954.19 = 6,909.33 : x
  2. Step 2: Convert to fraction form
    12,285.20/16,954.19 = 6,909.33/x
  3. Step 3: Cross multiply
    12,285.20x = 16,954.19 × 6,909.33
  4. Step 4: Simplify right side
    12,285.20x = 117,142,148.53
  5. Step 5: Solve for x
    x = 117,142,148.53/12,285.20
  6. Step 6: Final answer
    x = 9,535.22

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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.