Home / 18,687.36-28,027.80-5,536.20

Finding the Fourth Proportional to 18,687.36, 28,027.80 and 5,536.20

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Solution

The fourth proportional to 18,687.36, 28,027.80 and 5,536.20 is: 8,303.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687.36 : 28,027.80 = 5,536.20 : x
  2. Step 2: Convert to fraction form
    18,687.36/28,027.80 = 5,536.20/x
  3. Step 3: Cross multiply
    18,687.36x = 28,027.80 × 5,536.20
  4. Step 4: Simplify right side
    18,687.36x = 155,167,506.36
  5. Step 5: Solve for x
    x = 155,167,506.36/18,687.36
  6. Step 6: Final answer
    x = 8,303.34

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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.