Home / 12,601.74-18,900.95-4,281.42

Finding the Fourth Proportional to 12,601.74, 18,900.95 and 4,281.42

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Solution

The fourth proportional to 12,601.74, 18,900.95 and 4,281.42 is: 6,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.74 : 18,900.95 = 4,281.42 : x
  2. Step 2: Convert to fraction form
    12,601.74/18,900.95 = 4,281.42/x
  3. Step 3: Cross multiply
    12,601.74x = 18,900.95 × 4,281.42
  4. Step 4: Simplify right side
    12,601.74x = 80,922,883.94
  5. Step 5: Solve for x
    x = 80,922,883.94/12,601.74
  6. Step 6: Final answer
    x = 6,421.56

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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.