Home / 26,376.40-39,564.60-7,908.40

Finding the Fourth Proportional to 26,376.40, 39,564.60 and 7,908.40

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Solution

The fourth proportional to 26,376.40, 39,564.60 and 7,908.40 is: 11,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,376.40 : 39,564.60 = 7,908.40 : x
  2. Step 2: Convert to fraction form
    26,376.40/39,564.60 = 7,908.40/x
  3. Step 3: Cross multiply
    26,376.40x = 39,564.60 × 7,908.40
  4. Step 4: Simplify right side
    26,376.40x = 312,892,682.64
  5. Step 5: Solve for x
    x = 312,892,682.64/26,376.40
  6. Step 6: Final answer
    x = 11,862.60

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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.