Home / 13,391.40-20,080.80-5,995.92

Finding the Fourth Proportional to 13,391.40, 20,080.80 and 5,995.92

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Solution

The fourth proportional to 13,391.40, 20,080.80 and 5,995.92 is: 8,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.40 : 20,080.80 = 5,995.92 : x
  2. Step 2: Convert to fraction form
    13,391.40/20,080.80 = 5,995.92/x
  3. Step 3: Cross multiply
    13,391.40x = 20,080.80 × 5,995.92
  4. Step 4: Simplify right side
    13,391.40x = 120,402,870.34
  5. Step 5: Solve for x
    x = 120,402,870.34/13,391.40
  6. Step 6: Final answer
    x = 8,991.06

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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.