Home / 13,623.01-18,793.08-8,308.60

Finding the Fourth Proportional to 13,623.01, 18,793.08 and 8,308.60

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Solution

The fourth proportional to 13,623.01, 18,793.08 and 8,308.60 is: 11,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.01 : 18,793.08 = 8,308.60 : x
  2. Step 2: Convert to fraction form
    13,623.01/18,793.08 = 8,308.60/x
  3. Step 3: Cross multiply
    13,623.01x = 18,793.08 × 8,308.60
  4. Step 4: Simplify right side
    13,623.01x = 156,144,137.51
  5. Step 5: Solve for x
    x = 156,144,137.51/13,623.01
  6. Step 6: Final answer
    x = 11,461.80

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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.