Home / 16,939.99-23,378.91-9,770.18

Finding the Fourth Proportional to 16,939.99, 23,378.91 and 9,770.18

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Solution

The fourth proportional to 16,939.99, 23,378.91 and 9,770.18 is: 13,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.99 : 23,378.91 = 9,770.18 : x
  2. Step 2: Convert to fraction form
    16,939.99/23,378.91 = 9,770.18/x
  3. Step 3: Cross multiply
    16,939.99x = 23,378.91 × 9,770.18
  4. Step 4: Simplify right side
    16,939.99x = 228,416,158.90
  5. Step 5: Solve for x
    x = 228,416,158.90/16,939.99
  6. Step 6: Final answer
    x = 13,483.85

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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.