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Finding the Fourth Proportional to 7,568.40, 11,291.80 and 6,736.80

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Solution

The fourth proportional to 7,568.40, 11,291.80 and 6,736.80 is: 10,051.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,568.40 : 11,291.80 = 6,736.80 : x
  2. Step 2: Convert to fraction form
    7,568.40/11,291.80 = 6,736.80/x
  3. Step 3: Cross multiply
    7,568.40x = 11,291.80 × 6,736.80
  4. Step 4: Simplify right side
    7,568.40x = 76,070,598.24
  5. Step 5: Solve for x
    x = 76,070,598.24/7,568.40
  6. Step 6: Final answer
    x = 10,051.08

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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.