Home / 13,282.65-18,331.83-8,580.60

Finding the Fourth Proportional to 13,282.65, 18,331.83 and 8,580.60

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Solution

The fourth proportional to 13,282.65, 18,331.83 and 8,580.60 is: 11,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.65 : 18,331.83 = 8,580.60 : x
  2. Step 2: Convert to fraction form
    13,282.65/18,331.83 = 8,580.60/x
  3. Step 3: Cross multiply
    13,282.65x = 18,331.83 × 8,580.60
  4. Step 4: Simplify right side
    13,282.65x = 157,298,100.50
  5. Step 5: Solve for x
    x = 157,298,100.50/13,282.65
  6. Step 6: Final answer
    x = 11,842.37

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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.