Home / 12,273.07-18,415.08-6,428.32

Finding the Fourth Proportional to 12,273.07, 18,415.08 and 6,428.32

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Solution

The fourth proportional to 12,273.07, 18,415.08 and 6,428.32 is: 9,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,273.07 : 18,415.08 = 6,428.32 : x
  2. Step 2: Convert to fraction form
    12,273.07/18,415.08 = 6,428.32/x
  3. Step 3: Cross multiply
    12,273.07x = 18,415.08 × 6,428.32
  4. Step 4: Simplify right side
    12,273.07x = 118,378,027.07
  5. Step 5: Solve for x
    x = 118,378,027.07/12,273.07
  6. Step 6: Final answer
    x = 9,645.35

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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.