Home / 12,130.20-16,738.74-6,823.96

Finding the Fourth Proportional to 12,130.20, 16,738.74 and 6,823.96

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Solution

The fourth proportional to 12,130.20, 16,738.74 and 6,823.96 is: 9,416.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.20 : 16,738.74 = 6,823.96 : x
  2. Step 2: Convert to fraction form
    12,130.20/16,738.74 = 6,823.96/x
  3. Step 3: Cross multiply
    12,130.20x = 16,738.74 × 6,823.96
  4. Step 4: Simplify right side
    12,130.20x = 114,224,492.21
  5. Step 5: Solve for x
    x = 114,224,492.21/12,130.20
  6. Step 6: Final answer
    x = 9,416.54

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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.