Home / 8,941.90-12,335.97-5,403.06

Finding the Fourth Proportional to 8,941.90, 12,335.97 and 5,403.06

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Solution

The fourth proportional to 8,941.90, 12,335.97 and 5,403.06 is: 7,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.90 : 12,335.97 = 5,403.06 : x
  2. Step 2: Convert to fraction form
    8,941.90/12,335.97 = 5,403.06/x
  3. Step 3: Cross multiply
    8,941.90x = 12,335.97 × 5,403.06
  4. Step 4: Simplify right side
    8,941.90x = 66,651,986.07
  5. Step 5: Solve for x
    x = 66,651,986.07/8,941.90
  6. Step 6: Final answer
    x = 7,453.90

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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.