Home / 14,391.23-19,859.87-8,103.65

Finding the Fourth Proportional to 14,391.23, 19,859.87 and 8,103.65

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Solution

The fourth proportional to 14,391.23, 19,859.87 and 8,103.65 is: 11,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.23 : 19,859.87 = 8,103.65 : x
  2. Step 2: Convert to fraction form
    14,391.23/19,859.87 = 8,103.65/x
  3. Step 3: Cross multiply
    14,391.23x = 19,859.87 × 8,103.65
  4. Step 4: Simplify right side
    14,391.23x = 160,937,356.49
  5. Step 5: Solve for x
    x = 160,937,356.49/14,391.23
  6. Step 6: Final answer
    x = 11,183.02

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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.