Home / 13,282.66-18,331.84-8,580.62

Finding the Fourth Proportional to 13,282.66, 18,331.84 and 8,580.62

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Solution

The fourth proportional to 13,282.66, 18,331.84 and 8,580.62 is: 11,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.66 : 18,331.84 = 8,580.62 : x
  2. Step 2: Convert to fraction form
    13,282.66/18,331.84 = 8,580.62/x
  3. Step 3: Cross multiply
    13,282.66x = 18,331.84 × 8,580.62
  4. Step 4: Simplify right side
    13,282.66x = 157,298,552.94
  5. Step 5: Solve for x
    x = 157,298,552.94/13,282.66
  6. Step 6: Final answer
    x = 11,842.40

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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.