Home / 25,109.72-37,664.80-6,389.78

Finding the Fourth Proportional to 25,109.72, 37,664.80 and 6,389.78

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Solution

The fourth proportional to 25,109.72, 37,664.80 and 6,389.78 is: 9,584.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,109.72 : 37,664.80 = 6,389.78 : x
  2. Step 2: Convert to fraction form
    25,109.72/37,664.80 = 6,389.78/x
  3. Step 3: Cross multiply
    25,109.72x = 37,664.80 × 6,389.78
  4. Step 4: Simplify right side
    25,109.72x = 240,669,785.74
  5. Step 5: Solve for x
    x = 240,669,785.74/25,109.72
  6. Step 6: Final answer
    x = 9,584.73

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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.