Home / 8,749.81-13,123.73-3,126.27

Finding the Fourth Proportional to 8,749.81, 13,123.73 and 3,126.27

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Solution

The fourth proportional to 8,749.81, 13,123.73 and 3,126.27 is: 4,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.81 : 13,123.73 = 3,126.27 : x
  2. Step 2: Convert to fraction form
    8,749.81/13,123.73 = 3,126.27/x
  3. Step 3: Cross multiply
    8,749.81x = 13,123.73 × 3,126.27
  4. Step 4: Simplify right side
    8,749.81x = 41,028,298.39
  5. Step 5: Solve for x
    x = 41,028,298.39/8,749.81
  6. Step 6: Final answer
    x = 4,689.05

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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.