Home / 7,844.79-11,769.89-4,919.67

Finding the Fourth Proportional to 7,844.79, 11,769.89 and 4,919.67

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Solution

The fourth proportional to 7,844.79, 11,769.89 and 4,919.67 is: 7,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.79 : 11,769.89 = 4,919.67 : x
  2. Step 2: Convert to fraction form
    7,844.79/11,769.89 = 4,919.67/x
  3. Step 3: Cross multiply
    7,844.79x = 11,769.89 × 4,919.67
  4. Step 4: Simplify right side
    7,844.79x = 57,903,950.14
  5. Step 5: Solve for x
    x = 57,903,950.14/7,844.79
  6. Step 6: Final answer
    x = 7,381.20

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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.