Home / 26,438.47-39,664.22-7,718.69

Finding the Fourth Proportional to 26,438.47, 39,664.22 and 7,718.69

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Solution

The fourth proportional to 26,438.47, 39,664.22 and 7,718.69 is: 11,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,438.47 : 39,664.22 = 7,718.69 : x
  2. Step 2: Convert to fraction form
    26,438.47/39,664.22 = 7,718.69/x
  3. Step 3: Cross multiply
    26,438.47x = 39,664.22 × 7,718.69
  4. Step 4: Simplify right side
    26,438.47x = 306,155,878.84
  5. Step 5: Solve for x
    x = 306,155,878.84/26,438.47
  6. Step 6: Final answer
    x = 11,579.94

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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.