Home / 18,907.43-28,362.45-6,422.36

Finding the Fourth Proportional to 18,907.43, 28,362.45 and 6,422.36

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Solution

The fourth proportional to 18,907.43, 28,362.45 and 6,422.36 is: 9,633.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.43 : 28,362.45 = 6,422.36 : x
  2. Step 2: Convert to fraction form
    18,907.43/28,362.45 = 6,422.36/x
  3. Step 3: Cross multiply
    18,907.43x = 28,362.45 × 6,422.36
  4. Step 4: Simplify right side
    18,907.43x = 182,153,864.38
  5. Step 5: Solve for x
    x = 182,153,864.38/18,907.43
  6. Step 6: Final answer
    x = 9,633.98

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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.