Home / 19,107.38-28,661.40-6,627.84

Finding the Fourth Proportional to 19,107.38, 28,661.40 and 6,627.84

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Solution

The fourth proportional to 19,107.38, 28,661.40 and 6,627.84 is: 9,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.38 : 28,661.40 = 6,627.84 : x
  2. Step 2: Convert to fraction form
    19,107.38/28,661.40 = 6,627.84/x
  3. Step 3: Cross multiply
    19,107.38x = 28,661.40 × 6,627.84
  4. Step 4: Simplify right side
    19,107.38x = 189,963,173.38
  5. Step 5: Solve for x
    x = 189,963,173.38/19,107.38
  6. Step 6: Final answer
    x = 9,941.88

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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.