Home / 25,900.51-38,849.61-8,130.75

Finding the Fourth Proportional to 25,900.51, 38,849.61 and 8,130.75

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Solution

The fourth proportional to 25,900.51, 38,849.61 and 8,130.75 is: 12,195.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,900.51 : 38,849.61 = 8,130.75 : x
  2. Step 2: Convert to fraction form
    25,900.51/38,849.61 = 8,130.75/x
  3. Step 3: Cross multiply
    25,900.51x = 38,849.61 × 8,130.75
  4. Step 4: Simplify right side
    25,900.51x = 315,876,466.51
  5. Step 5: Solve for x
    x = 315,876,466.51/25,900.51
  6. Step 6: Final answer
    x = 12,195.76

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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.