Home / 13,207.12-18,226-8,492.96

Finding the Fourth Proportional to 13,207.12, 18,226 and 8,492.96

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Solution

The fourth proportional to 13,207.12, 18,226 and 8,492.96 is: 11,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.12 : 18,226 = 8,492.96 : x
  2. Step 2: Convert to fraction form
    13,207.12/18,226 = 8,492.96/x
  3. Step 3: Cross multiply
    13,207.12x = 18,226 × 8,492.96
  4. Step 4: Simplify right side
    13,207.12x = 154,792,688.96
  5. Step 5: Solve for x
    x = 154,792,688.96/13,207.12
  6. Step 6: Final answer
    x = 11,720.40

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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.