Home / 12,108.63-16,709.45-6,803.67

Finding the Fourth Proportional to 12,108.63, 16,709.45 and 6,803.67

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Solution

The fourth proportional to 12,108.63, 16,709.45 and 6,803.67 is: 9,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.63 : 16,709.45 = 6,803.67 : x
  2. Step 2: Convert to fraction form
    12,108.63/16,709.45 = 6,803.67/x
  3. Step 3: Cross multiply
    12,108.63x = 16,709.45 × 6,803.67
  4. Step 4: Simplify right side
    12,108.63x = 113,685,549.66
  5. Step 5: Solve for x
    x = 113,685,549.66/12,108.63
  6. Step 6: Final answer
    x = 9,388.80

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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.