Home / 26,400.90-39,606.48-8,636.52

Finding the Fourth Proportional to 26,400.90, 39,606.48 and 8,636.52

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Solution

The fourth proportional to 26,400.90, 39,606.48 and 8,636.52 is: 12,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,400.90 : 39,606.48 = 8,636.52 : x
  2. Step 2: Convert to fraction form
    26,400.90/39,606.48 = 8,636.52/x
  3. Step 3: Cross multiply
    26,400.90x = 39,606.48 × 8,636.52
  4. Step 4: Simplify right side
    26,400.90x = 342,062,156.65
  5. Step 5: Solve for x
    x = 342,062,156.65/26,400.90
  6. Step 6: Final answer
    x = 12,956.46

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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.