Home / 12,289.92-18,435.44-3,526.08

Finding the Fourth Proportional to 12,289.92, 18,435.44 and 3,526.08

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Solution

The fourth proportional to 12,289.92, 18,435.44 and 3,526.08 is: 5,289.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.92 : 18,435.44 = 3,526.08 : x
  2. Step 2: Convert to fraction form
    12,289.92/18,435.44 = 3,526.08/x
  3. Step 3: Cross multiply
    12,289.92x = 18,435.44 × 3,526.08
  4. Step 4: Simplify right side
    12,289.92x = 65,004,836.28
  5. Step 5: Solve for x
    x = 65,004,836.28/12,289.92
  6. Step 6: Final answer
    x = 5,289.28

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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.