Home / 26,578.63-39,873.57-7,857.19

Finding the Fourth Proportional to 26,578.63, 39,873.57 and 7,857.19

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Solution

The fourth proportional to 26,578.63, 39,873.57 and 7,857.19 is: 11,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,578.63 : 39,873.57 = 7,857.19 : x
  2. Step 2: Convert to fraction form
    26,578.63/39,873.57 = 7,857.19/x
  3. Step 3: Cross multiply
    26,578.63x = 39,873.57 × 7,857.19
  4. Step 4: Simplify right side
    26,578.63x = 313,294,215.47
  5. Step 5: Solve for x
    x = 313,294,215.47/26,578.63
  6. Step 6: Final answer
    x = 11,787.45

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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.