Home / 12,135.99-18,206.58-6,873.49

Finding the Fourth Proportional to 12,135.99, 18,206.58 and 6,873.49

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Solution

The fourth proportional to 12,135.99, 18,206.58 and 6,873.49 is: 10,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.99 : 18,206.58 = 6,873.49 : x
  2. Step 2: Convert to fraction form
    12,135.99/18,206.58 = 6,873.49/x
  3. Step 3: Cross multiply
    12,135.99x = 18,206.58 × 6,873.49
  4. Step 4: Simplify right side
    12,135.99x = 125,142,654.53
  5. Step 5: Solve for x
    x = 125,142,654.53/12,135.99
  6. Step 6: Final answer
    x = 10,311.70

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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.