Home / 18,966.27-28,453.83-6,486.39

Finding the Fourth Proportional to 18,966.27, 28,453.83 and 6,486.39

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Solution

The fourth proportional to 18,966.27, 28,453.83 and 6,486.39 is: 9,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.27 : 28,453.83 = 6,486.39 : x
  2. Step 2: Convert to fraction form
    18,966.27/28,453.83 = 6,486.39/x
  3. Step 3: Cross multiply
    18,966.27x = 28,453.83 × 6,486.39
  4. Step 4: Simplify right side
    18,966.27x = 184,562,638.37
  5. Step 5: Solve for x
    x = 184,562,638.37/18,966.27
  6. Step 6: Final answer
    x = 9,731.10

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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.