Home / 13,492.94-18,638.39-12,235.41

Finding the Fourth Proportional to 13,492.94, 18,638.39 and 12,235.41

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Solution

The fourth proportional to 13,492.94, 18,638.39 and 12,235.41 is: 16,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.94 : 18,638.39 = 12,235.41 : x
  2. Step 2: Convert to fraction form
    13,492.94/18,638.39 = 12,235.41/x
  3. Step 3: Cross multiply
    13,492.94x = 18,638.39 × 12,235.41
  4. Step 4: Simplify right side
    13,492.94x = 228,048,373.98
  5. Step 5: Solve for x
    x = 228,048,373.98/13,492.94
  6. Step 6: Final answer
    x = 16,901.32

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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.