Home / 7,519.68-11,263.10-3,123.81

Finding the Fourth Proportional to 7,519.68, 11,263.10 and 3,123.81

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Solution

The fourth proportional to 7,519.68, 11,263.10 and 3,123.81 is: 4,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.68 : 11,263.10 = 3,123.81 : x
  2. Step 2: Convert to fraction form
    7,519.68/11,263.10 = 3,123.81/x
  3. Step 3: Cross multiply
    7,519.68x = 11,263.10 × 3,123.81
  4. Step 4: Simplify right side
    7,519.68x = 35,183,768.79
  5. Step 5: Solve for x
    x = 35,183,768.79/7,519.68
  6. Step 6: Final answer
    x = 4,678.89

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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.