Home / 16,869.50-23,279.77-9,316.34

Finding the Fourth Proportional to 16,869.50, 23,279.77 and 9,316.34

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Solution

The fourth proportional to 16,869.50, 23,279.77 and 9,316.34 is: 12,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869.50 : 23,279.77 = 9,316.34 : x
  2. Step 2: Convert to fraction form
    16,869.50/23,279.77 = 9,316.34/x
  3. Step 3: Cross multiply
    16,869.50x = 23,279.77 × 9,316.34
  4. Step 4: Simplify right side
    16,869.50x = 216,882,234.99
  5. Step 5: Solve for x
    x = 216,882,234.99/16,869.50
  6. Step 6: Final answer
    x = 12,856.47

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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.