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Finding the Fourth Proportional to 7,673.40, 11,510.10 and 6,361.20

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Solution

The fourth proportional to 7,673.40, 11,510.10 and 6,361.20 is: 9,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,673.40 : 11,510.10 = 6,361.20 : x
  2. Step 2: Convert to fraction form
    7,673.40/11,510.10 = 6,361.20/x
  3. Step 3: Cross multiply
    7,673.40x = 11,510.10 × 6,361.20
  4. Step 4: Simplify right side
    7,673.40x = 73,218,048.12
  5. Step 5: Solve for x
    x = 73,218,048.12/7,673.40
  6. Step 6: Final answer
    x = 9,541.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.