Home / 18,684.21-28,021.53-5,533.51

Finding the Fourth Proportional to 18,684.21, 28,021.53 and 5,533.51

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Solution

The fourth proportional to 18,684.21, 28,021.53 and 5,533.51 is: 8,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.21 : 28,021.53 = 5,533.51 : x
  2. Step 2: Convert to fraction form
    18,684.21/28,021.53 = 5,533.51/x
  3. Step 3: Cross multiply
    18,684.21x = 28,021.53 × 5,533.51
  4. Step 4: Simplify right side
    18,684.21x = 155,057,276.36
  5. Step 5: Solve for x
    x = 155,057,276.36/18,684.21
  6. Step 6: Final answer
    x = 8,298.84

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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.