Home / 8,140.53-11,213.84-6,941.62

Finding the Fourth Proportional to 8,140.53, 11,213.84 and 6,941.62

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Solution

The fourth proportional to 8,140.53, 11,213.84 and 6,941.62 is: 9,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.53 : 11,213.84 = 6,941.62 : x
  2. Step 2: Convert to fraction form
    8,140.53/11,213.84 = 6,941.62/x
  3. Step 3: Cross multiply
    8,140.53x = 11,213.84 × 6,941.62
  4. Step 4: Simplify right side
    8,140.53x = 77,842,159.95
  5. Step 5: Solve for x
    x = 77,842,159.95/8,140.53
  6. Step 6: Final answer
    x = 9,562.30

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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.