Home / 12,266.08-16,920.84-8,492.80

Finding the Fourth Proportional to 12,266.08, 16,920.84 and 8,492.80

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Solution

The fourth proportional to 12,266.08, 16,920.84 and 8,492.80 is: 11,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.08 : 16,920.84 = 8,492.80 : x
  2. Step 2: Convert to fraction form
    12,266.08/16,920.84 = 8,492.80/x
  3. Step 3: Cross multiply
    12,266.08x = 16,920.84 × 8,492.80
  4. Step 4: Simplify right side
    12,266.08x = 143,705,309.95
  5. Step 5: Solve for x
    x = 143,705,309.95/12,266.08
  6. Step 6: Final answer
    x = 11,715.67

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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.