Home / 8,025.57-11,985.02-7,938.69

Finding the Fourth Proportional to 8,025.57, 11,985.02 and 7,938.69

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Solution

The fourth proportional to 8,025.57, 11,985.02 and 7,938.69 is: 11,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,025.57 : 11,985.02 = 7,938.69 : x
  2. Step 2: Convert to fraction form
    8,025.57/11,985.02 = 7,938.69/x
  3. Step 3: Cross multiply
    8,025.57x = 11,985.02 × 7,938.69
  4. Step 4: Simplify right side
    8,025.57x = 95,145,378.27
  5. Step 5: Solve for x
    x = 95,145,378.27/8,025.57
  6. Step 6: Final answer
    x = 11,855.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.