Home / 11,152.98-15,379.60-7,794.56

Finding the Fourth Proportional to 11,152.98, 15,379.60 and 7,794.56

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Solution

The fourth proportional to 11,152.98, 15,379.60 and 7,794.56 is: 10,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.98 : 15,379.60 = 7,794.56 : x
  2. Step 2: Convert to fraction form
    11,152.98/15,379.60 = 7,794.56/x
  3. Step 3: Cross multiply
    11,152.98x = 15,379.60 × 7,794.56
  4. Step 4: Simplify right side
    11,152.98x = 119,877,214.98
  5. Step 5: Solve for x
    x = 119,877,214.98/11,152.98
  6. Step 6: Final answer
    x = 10,748.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.