Home / 26,385.90-39,572.64-7,661.00

Finding the Fourth Proportional to 26,385.90, 39,572.64 and 7,661.00

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Solution

The fourth proportional to 26,385.90, 39,572.64 and 7,661.00 is: 11,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,385.90 : 39,572.64 = 7,661.00 : x
  2. Step 2: Convert to fraction form
    26,385.90/39,572.64 = 7,661.00/x
  3. Step 3: Cross multiply
    26,385.90x = 39,572.64 × 7,661.00
  4. Step 4: Simplify right side
    26,385.90x = 303,165,797.18
  5. Step 5: Solve for x
    x = 303,165,797.18/26,385.90
  6. Step 6: Final answer
    x = 11,489.69

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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.