Home / 19,278.41-28,920.90-6,627.56

Finding the Fourth Proportional to 19,278.41, 28,920.90 and 6,627.56

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Solution

The fourth proportional to 19,278.41, 28,920.90 and 6,627.56 is: 9,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.41 : 28,920.90 = 6,627.56 : x
  2. Step 2: Convert to fraction form
    19,278.41/28,920.90 = 6,627.56/x
  3. Step 3: Cross multiply
    19,278.41x = 28,920.90 × 6,627.56
  4. Step 4: Simplify right side
    19,278.41x = 191,674,855.40
  5. Step 5: Solve for x
    x = 191,674,855.40/19,278.41
  6. Step 6: Final answer
    x = 9,942.46

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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.