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Finding the Fourth Proportional to 7,130.34, 10,759.28 and 6,860.34

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Solution

The fourth proportional to 7,130.34, 10,759.28 and 6,860.34 is: 10,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.34 : 10,759.28 = 6,860.34 : x
  2. Step 2: Convert to fraction form
    7,130.34/10,759.28 = 6,860.34/x
  3. Step 3: Cross multiply
    7,130.34x = 10,759.28 × 6,860.34
  4. Step 4: Simplify right side
    7,130.34x = 73,812,284.65
  5. Step 5: Solve for x
    x = 73,812,284.65/7,130.34
  6. Step 6: Final answer
    x = 10,351.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.