Home / 19,076.28-28,608.84-7,386.72

Finding the Fourth Proportional to 19,076.28, 28,608.84 and 7,386.72

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Solution

The fourth proportional to 19,076.28, 28,608.84 and 7,386.72 is: 11,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,076.28 : 28,608.84 = 7,386.72 : x
  2. Step 2: Convert to fraction form
    19,076.28/28,608.84 = 7,386.72/x
  3. Step 3: Cross multiply
    19,076.28x = 28,608.84 × 7,386.72
  4. Step 4: Simplify right side
    19,076.28x = 211,325,490.60
  5. Step 5: Solve for x
    x = 211,325,490.60/19,076.28
  6. Step 6: Final answer
    x = 11,077.92

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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.