Home / 18,907.08-28,364.87-5,579.93

Finding the Fourth Proportional to 18,907.08, 28,364.87 and 5,579.93

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Solution

The fourth proportional to 18,907.08, 28,364.87 and 5,579.93 is: 8,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.08 : 28,364.87 = 5,579.93 : x
  2. Step 2: Convert to fraction form
    18,907.08/28,364.87 = 5,579.93/x
  3. Step 3: Cross multiply
    18,907.08x = 28,364.87 × 5,579.93
  4. Step 4: Simplify right side
    18,907.08x = 158,274,032.07
  5. Step 5: Solve for x
    x = 158,274,032.07/18,907.08
  6. Step 6: Final answer
    x = 8,371.15

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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.