Home / 8,125.90-11,209.61-4,938.35

Finding the Fourth Proportional to 8,125.90, 11,209.61 and 4,938.35

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Solution

The fourth proportional to 8,125.90, 11,209.61 and 4,938.35 is: 6,812.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.90 : 11,209.61 = 4,938.35 : x
  2. Step 2: Convert to fraction form
    8,125.90/11,209.61 = 4,938.35/x
  3. Step 3: Cross multiply
    8,125.90x = 11,209.61 × 4,938.35
  4. Step 4: Simplify right side
    8,125.90x = 55,356,977.54
  5. Step 5: Solve for x
    x = 55,356,977.54/8,125.90
  6. Step 6: Final answer
    x = 6,812.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.