Home / 12,465.66-18,701.67-4,145.73

Finding the Fourth Proportional to 12,465.66, 18,701.67 and 4,145.73

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Solution

The fourth proportional to 12,465.66, 18,701.67 and 4,145.73 is: 6,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.66 : 18,701.67 = 4,145.73 : x
  2. Step 2: Convert to fraction form
    12,465.66/18,701.67 = 4,145.73/x
  3. Step 3: Cross multiply
    12,465.66x = 18,701.67 × 4,145.73
  4. Step 4: Simplify right side
    12,465.66x = 77,532,074.37
  5. Step 5: Solve for x
    x = 77,532,074.37/12,465.66
  6. Step 6: Final answer
    x = 6,219.65

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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.