Home / 13,898.69-19,183.16-8,861.75

Finding the Fourth Proportional to 13,898.69, 19,183.16 and 8,861.75

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Solution

The fourth proportional to 13,898.69, 19,183.16 and 8,861.75 is: 12,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.69 : 19,183.16 = 8,861.75 : x
  2. Step 2: Convert to fraction form
    13,898.69/19,183.16 = 8,861.75/x
  3. Step 3: Cross multiply
    13,898.69x = 19,183.16 × 8,861.75
  4. Step 4: Simplify right side
    13,898.69x = 169,996,368.13
  5. Step 5: Solve for x
    x = 169,996,368.13/13,898.69
  6. Step 6: Final answer
    x = 12,231.11

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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.