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Finding the Fourth Proportional to 12,492.80, 18,735.60 and 10,296.08

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Solution

The fourth proportional to 12,492.80, 18,735.60 and 10,296.08 is: 15,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.80 : 18,735.60 = 10,296.08 : x
  2. Step 2: Convert to fraction form
    12,492.80/18,735.60 = 10,296.08/x
  3. Step 3: Cross multiply
    12,492.80x = 18,735.60 × 10,296.08
  4. Step 4: Simplify right side
    12,492.80x = 192,903,236.45
  5. Step 5: Solve for x
    x = 192,903,236.45/12,492.80
  6. Step 6: Final answer
    x = 15,441.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.