Home / 7,938.09-11,898.63-3,775.50

Finding the Fourth Proportional to 7,938.09, 11,898.63 and 3,775.50

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Solution

The fourth proportional to 7,938.09, 11,898.63 and 3,775.50 is: 5,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.09 : 11,898.63 = 3,775.50 : x
  2. Step 2: Convert to fraction form
    7,938.09/11,898.63 = 3,775.50/x
  3. Step 3: Cross multiply
    7,938.09x = 11,898.63 × 3,775.50
  4. Step 4: Simplify right side
    7,938.09x = 44,923,277.57
  5. Step 5: Solve for x
    x = 44,923,277.57/7,938.09
  6. Step 6: Final answer
    x = 5,659.20

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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.