Home / 13,890.84-20,827.62-6,492.12

Finding the Fourth Proportional to 13,890.84, 20,827.62 and 6,492.12

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Solution

The fourth proportional to 13,890.84, 20,827.62 and 6,492.12 is: 9,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.84 : 20,827.62 = 6,492.12 : x
  2. Step 2: Convert to fraction form
    13,890.84/20,827.62 = 6,492.12/x
  3. Step 3: Cross multiply
    13,890.84x = 20,827.62 × 6,492.12
  4. Step 4: Simplify right side
    13,890.84x = 135,215,408.35
  5. Step 5: Solve for x
    x = 135,215,408.35/13,890.84
  6. Step 6: Final answer
    x = 9,734.14

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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.