Home / 13,226.48-18,255.70-8,984.60

Finding the Fourth Proportional to 13,226.48, 18,255.70 and 8,984.60

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Solution

The fourth proportional to 13,226.48, 18,255.70 and 8,984.60 is: 12,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.48 : 18,255.70 = 8,984.60 : x
  2. Step 2: Convert to fraction form
    13,226.48/18,255.70 = 8,984.60/x
  3. Step 3: Cross multiply
    13,226.48x = 18,255.70 × 8,984.60
  4. Step 4: Simplify right side
    13,226.48x = 164,020,162.22
  5. Step 5: Solve for x
    x = 164,020,162.22/13,226.48
  6. Step 6: Final answer
    x = 12,400.89

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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.