Home / 26,450.68-39,681.90-8,919.64

Finding the Fourth Proportional to 26,450.68, 39,681.90 and 8,919.64

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Solution

The fourth proportional to 26,450.68, 39,681.90 and 8,919.64 is: 13,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,450.68 : 39,681.90 = 8,919.64 : x
  2. Step 2: Convert to fraction form
    26,450.68/39,681.90 = 8,919.64/x
  3. Step 3: Cross multiply
    26,450.68x = 39,681.90 × 8,919.64
  4. Step 4: Simplify right side
    26,450.68x = 353,948,262.52
  5. Step 5: Solve for x
    x = 353,948,262.52/26,450.68
  6. Step 6: Final answer
    x = 13,381.44

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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.