Home / 16,861.21-23,269.73-9,788.71

Finding the Fourth Proportional to 16,861.21, 23,269.73 and 9,788.71

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Solution

The fourth proportional to 16,861.21, 23,269.73 and 9,788.71 is: 13,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.21 : 23,269.73 = 9,788.71 : x
  2. Step 2: Convert to fraction form
    16,861.21/23,269.73 = 9,788.71/x
  3. Step 3: Cross multiply
    16,861.21x = 23,269.73 × 9,788.71
  4. Step 4: Simplify right side
    16,861.21x = 227,780,589.80
  5. Step 5: Solve for x
    x = 227,780,589.80/16,861.21
  6. Step 6: Final answer
    x = 13,509.15

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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.