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Finding the Fourth Proportional to 7,005.16, 10,429.96 and 6,907.09

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Solution

The fourth proportional to 7,005.16, 10,429.96 and 6,907.09 is: 10,283.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.16 : 10,429.96 = 6,907.09 : x
  2. Step 2: Convert to fraction form
    7,005.16/10,429.96 = 6,907.09/x
  3. Step 3: Cross multiply
    7,005.16x = 10,429.96 × 6,907.09
  4. Step 4: Simplify right side
    7,005.16x = 72,040,672.42
  5. Step 5: Solve for x
    x = 72,040,672.42/7,005.16
  6. Step 6: Final answer
    x = 10,283.94

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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.