Home / 13,974.75-20,966.18-4,740.75

Finding the Fourth Proportional to 13,974.75, 20,966.18 and 4,740.75

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Solution

The fourth proportional to 13,974.75, 20,966.18 and 4,740.75 is: 7,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.75 : 20,966.18 = 4,740.75 : x
  2. Step 2: Convert to fraction form
    13,974.75/20,966.18 = 4,740.75/x
  3. Step 3: Cross multiply
    13,974.75x = 20,966.18 × 4,740.75
  4. Step 4: Simplify right side
    13,974.75x = 99,395,394.13
  5. Step 5: Solve for x
    x = 99,395,394.13/13,974.75
  6. Step 6: Final answer
    x = 7,112.50

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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.