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Finding the Fourth Proportional to 7,076.70, 10,559.70 and 7,028.10

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Solution

The fourth proportional to 7,076.70, 10,559.70 and 7,028.10 is: 10,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.70 : 10,559.70 = 7,028.10 : x
  2. Step 2: Convert to fraction form
    7,076.70/10,559.70 = 7,028.10/x
  3. Step 3: Cross multiply
    7,076.70x = 10,559.70 × 7,028.10
  4. Step 4: Simplify right side
    7,076.70x = 74,214,627.57
  5. Step 5: Solve for x
    x = 74,214,627.57/7,076.70
  6. Step 6: Final answer
    x = 10,487.18

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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.