Home / 7,146.31-10,675.87-5,687.09

Finding the Fourth Proportional to 7,146.31, 10,675.87 and 5,687.09

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Solution

The fourth proportional to 7,146.31, 10,675.87 and 5,687.09 is: 8,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.31 : 10,675.87 = 5,687.09 : x
  2. Step 2: Convert to fraction form
    7,146.31/10,675.87 = 5,687.09/x
  3. Step 3: Cross multiply
    7,146.31x = 10,675.87 × 5,687.09
  4. Step 4: Simplify right side
    7,146.31x = 60,714,605.08
  5. Step 5: Solve for x
    x = 60,714,605.08/7,146.31
  6. Step 6: Final answer
    x = 8,495.94

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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.