Home / 18,722.54-25,847.48-12,762.96

Finding the Fourth Proportional to 18,722.54, 25,847.48 and 12,762.96

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Solution

The fourth proportional to 18,722.54, 25,847.48 and 12,762.96 is: 17,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.54 : 25,847.48 = 12,762.96 : x
  2. Step 2: Convert to fraction form
    18,722.54/25,847.48 = 12,762.96/x
  3. Step 3: Cross multiply
    18,722.54x = 25,847.48 × 12,762.96
  4. Step 4: Simplify right side
    18,722.54x = 329,890,353.34
  5. Step 5: Solve for x
    x = 329,890,353.34/18,722.54
  6. Step 6: Final answer
    x = 17,619.96

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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.