Home / 13,993.37-20,990.10-5,673.55

Finding the Fourth Proportional to 13,993.37, 20,990.10 and 5,673.55

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Solution

The fourth proportional to 13,993.37, 20,990.10 and 5,673.55 is: 8,510.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.37 : 20,990.10 = 5,673.55 : x
  2. Step 2: Convert to fraction form
    13,993.37/20,990.10 = 5,673.55/x
  3. Step 3: Cross multiply
    13,993.37x = 20,990.10 × 5,673.55
  4. Step 4: Simplify right side
    13,993.37x = 119,088,381.86
  5. Step 5: Solve for x
    x = 119,088,381.86/13,993.37
  6. Step 6: Final answer
    x = 8,510.34

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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.