Home / 7,719.50-11,579.23-1,876.11

Finding the Fourth Proportional to 7,719.50, 11,579.23 and 1,876.11

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Solution

The fourth proportional to 7,719.50, 11,579.23 and 1,876.11 is: 2,814.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.50 : 11,579.23 = 1,876.11 : x
  2. Step 2: Convert to fraction form
    7,719.50/11,579.23 = 1,876.11/x
  3. Step 3: Cross multiply
    7,719.50x = 11,579.23 × 1,876.11
  4. Step 4: Simplify right side
    7,719.50x = 21,723,899.81
  5. Step 5: Solve for x
    x = 21,723,899.81/7,719.50
  6. Step 6: Final answer
    x = 2,814.16

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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.