Home / 13,907.74-20,864.70-4,047.80

Finding the Fourth Proportional to 13,907.74, 20,864.70 and 4,047.80

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Solution

The fourth proportional to 13,907.74, 20,864.70 and 4,047.80 is: 6,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.74 : 20,864.70 = 4,047.80 : x
  2. Step 2: Convert to fraction form
    13,907.74/20,864.70 = 4,047.80/x
  3. Step 3: Cross multiply
    13,907.74x = 20,864.70 × 4,047.80
  4. Step 4: Simplify right side
    13,907.74x = 84,456,132.66
  5. Step 5: Solve for x
    x = 84,456,132.66/13,907.74
  6. Step 6: Final answer
    x = 6,072.60

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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.