Home / 12,603.87-18,896.53-4,281.65

Finding the Fourth Proportional to 12,603.87, 18,896.53 and 4,281.65

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Solution

The fourth proportional to 12,603.87, 18,896.53 and 4,281.65 is: 6,419.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.87 : 18,896.53 = 4,281.65 : x
  2. Step 2: Convert to fraction form
    12,603.87/18,896.53 = 4,281.65/x
  3. Step 3: Cross multiply
    12,603.87x = 18,896.53 × 4,281.65
  4. Step 4: Simplify right side
    12,603.87x = 80,908,327.67
  5. Step 5: Solve for x
    x = 80,908,327.67/12,603.87
  6. Step 6: Final answer
    x = 6,419.32

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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.