Home / 26,289.43-39,419.56-8,749.69

Finding the Fourth Proportional to 26,289.43, 39,419.56 and 8,749.69

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Solution

The fourth proportional to 26,289.43, 39,419.56 and 8,749.69 is: 13,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,289.43 : 39,419.56 = 8,749.69 : x
  2. Step 2: Convert to fraction form
    26,289.43/39,419.56 = 8,749.69/x
  3. Step 3: Cross multiply
    26,289.43x = 39,419.56 × 8,749.69
  4. Step 4: Simplify right side
    26,289.43x = 344,908,929.94
  5. Step 5: Solve for x
    x = 344,908,929.94/26,289.43
  6. Step 6: Final answer
    x = 13,119.68

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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.