Home / 14,255.54-21,241.23-12,703.70

Finding the Fourth Proportional to 14,255.54, 21,241.23 and 12,703.70

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Solution

The fourth proportional to 14,255.54, 21,241.23 and 12,703.70 is: 18,928.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.54 : 21,241.23 = 12,703.70 : x
  2. Step 2: Convert to fraction form
    14,255.54/21,241.23 = 12,703.70/x
  3. Step 3: Cross multiply
    14,255.54x = 21,241.23 × 12,703.70
  4. Step 4: Simplify right side
    14,255.54x = 269,842,150.03
  5. Step 5: Solve for x
    x = 269,842,150.03/14,255.54
  6. Step 6: Final answer
    x = 18,928.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.