Home / 26,539.45-39,802.77-7,814.40

Finding the Fourth Proportional to 26,539.45, 39,802.77 and 7,814.40

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Solution

The fourth proportional to 26,539.45, 39,802.77 and 7,814.40 is: 11,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,539.45 : 39,802.77 = 7,814.40 : x
  2. Step 2: Convert to fraction form
    26,539.45/39,802.77 = 7,814.40/x
  3. Step 3: Cross multiply
    26,539.45x = 39,802.77 × 7,814.40
  4. Step 4: Simplify right side
    26,539.45x = 311,034,765.89
  5. Step 5: Solve for x
    x = 311,034,765.89/26,539.45
  6. Step 6: Final answer
    x = 11,719.71

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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.