Home / 14,389.74-19,863.09-10,861.38

Finding the Fourth Proportional to 14,389.74, 19,863.09 and 10,861.38

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Solution

The fourth proportional to 14,389.74, 19,863.09 and 10,861.38 is: 14,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.74 : 19,863.09 = 10,861.38 : x
  2. Step 2: Convert to fraction form
    14,389.74/19,863.09 = 10,861.38/x
  3. Step 3: Cross multiply
    14,389.74x = 19,863.09 × 10,861.38
  4. Step 4: Simplify right side
    14,389.74x = 215,740,568.46
  5. Step 5: Solve for x
    x = 215,740,568.46/14,389.74
  6. Step 6: Final answer
    x = 14,992.67

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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.