Home / 13,938.06-20,907.13-4,077.46

Finding the Fourth Proportional to 13,938.06, 20,907.13 and 4,077.46

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Solution

The fourth proportional to 13,938.06, 20,907.13 and 4,077.46 is: 6,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.06 : 20,907.13 = 4,077.46 : x
  2. Step 2: Convert to fraction form
    13,938.06/20,907.13 = 4,077.46/x
  3. Step 3: Cross multiply
    13,938.06x = 20,907.13 × 4,077.46
  4. Step 4: Simplify right side
    13,938.06x = 85,247,986.29
  5. Step 5: Solve for x
    x = 85,247,986.29/13,938.06
  6. Step 6: Final answer
    x = 6,116.20

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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.