Home / 13,276.20-18,318.62-8,492.48

Finding the Fourth Proportional to 13,276.20, 18,318.62 and 8,492.48

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Solution

The fourth proportional to 13,276.20, 18,318.62 and 8,492.48 is: 11,718.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.20 : 18,318.62 = 8,492.48 : x
  2. Step 2: Convert to fraction form
    13,276.20/18,318.62 = 8,492.48/x
  3. Step 3: Cross multiply
    13,276.20x = 18,318.62 × 8,492.48
  4. Step 4: Simplify right side
    13,276.20x = 155,570,513.98
  5. Step 5: Solve for x
    x = 155,570,513.98/13,276.20
  6. Step 6: Final answer
    x = 11,718.00

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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.