Home / 14,662.22-21,989.96-8,740.78

Finding the Fourth Proportional to 14,662.22, 21,989.96 and 8,740.78

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Solution

The fourth proportional to 14,662.22, 21,989.96 and 8,740.78 is: 13,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,662.22 : 21,989.96 = 8,740.78 : x
  2. Step 2: Convert to fraction form
    14,662.22/21,989.96 = 8,740.78/x
  3. Step 3: Cross multiply
    14,662.22x = 21,989.96 × 8,740.78
  4. Step 4: Simplify right side
    14,662.22x = 192,209,402.57
  5. Step 5: Solve for x
    x = 192,209,402.57/14,662.22
  6. Step 6: Final answer
    x = 13,109.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.