Home / 13,892.40-19,171.44-12,762.75

Finding the Fourth Proportional to 13,892.40, 19,171.44 and 12,762.75

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Solution

The fourth proportional to 13,892.40, 19,171.44 and 12,762.75 is: 17,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.40 : 19,171.44 = 12,762.75 : x
  2. Step 2: Convert to fraction form
    13,892.40/19,171.44 = 12,762.75/x
  3. Step 3: Cross multiply
    13,892.40x = 19,171.44 × 12,762.75
  4. Step 4: Simplify right side
    13,892.40x = 244,680,295.86
  5. Step 5: Solve for x
    x = 244,680,295.86/13,892.40
  6. Step 6: Final answer
    x = 17,612.53

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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.