Home / 7,788.58-10,747.89-4,431.67

Finding the Fourth Proportional to 7,788.58, 10,747.89 and 4,431.67

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Solution

The fourth proportional to 7,788.58, 10,747.89 and 4,431.67 is: 6,115.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.58 : 10,747.89 = 4,431.67 : x
  2. Step 2: Convert to fraction form
    7,788.58/10,747.89 = 4,431.67/x
  3. Step 3: Cross multiply
    7,788.58x = 10,747.89 × 4,431.67
  4. Step 4: Simplify right side
    7,788.58x = 47,631,101.68
  5. Step 5: Solve for x
    x = 47,631,101.68/7,788.58
  6. Step 6: Final answer
    x = 6,115.51

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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.