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Finding the Fourth Proportional to 7,029.79, 9,696.41 and 5,112.39

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Solution

The fourth proportional to 7,029.79, 9,696.41 and 5,112.39 is: 7,051.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,029.79 : 9,696.41 = 5,112.39 : x
  2. Step 2: Convert to fraction form
    7,029.79/9,696.41 = 5,112.39/x
  3. Step 3: Cross multiply
    7,029.79x = 9,696.41 × 5,112.39
  4. Step 4: Simplify right side
    7,029.79x = 49,571,829.52
  5. Step 5: Solve for x
    x = 49,571,829.52/7,029.79
  6. Step 6: Final answer
    x = 7,051.68

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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.