Home / 13,923.66-20,885.18-3,393.57

Finding the Fourth Proportional to 13,923.66, 20,885.18 and 3,393.57

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Solution

The fourth proportional to 13,923.66, 20,885.18 and 3,393.57 is: 5,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.66 : 20,885.18 = 3,393.57 : x
  2. Step 2: Convert to fraction form
    13,923.66/20,885.18 = 3,393.57/x
  3. Step 3: Cross multiply
    13,923.66x = 20,885.18 × 3,393.57
  4. Step 4: Simplify right side
    13,923.66x = 70,875,303.32
  5. Step 5: Solve for x
    x = 70,875,303.32/13,923.66
  6. Step 6: Final answer
    x = 5,090.28

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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.