Home / 13,889.87-19,174.17-8,860.68

Finding the Fourth Proportional to 13,889.87, 19,174.17 and 8,860.68

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Solution

The fourth proportional to 13,889.87, 19,174.17 and 8,860.68 is: 12,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.87 : 19,174.17 = 8,860.68 : x
  2. Step 2: Convert to fraction form
    13,889.87/19,174.17 = 8,860.68/x
  3. Step 3: Cross multiply
    13,889.87x = 19,174.17 × 8,860.68
  4. Step 4: Simplify right side
    13,889.87x = 169,896,184.64
  5. Step 5: Solve for x
    x = 169,896,184.64/13,889.87
  6. Step 6: Final answer
    x = 12,231.67

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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.