Home / 7,868.82-10,857.58-4,725.07

Finding the Fourth Proportional to 7,868.82, 10,857.58 and 4,725.07

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Solution

The fourth proportional to 7,868.82, 10,857.58 and 4,725.07 is: 6,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.82 : 10,857.58 = 4,725.07 : x
  2. Step 2: Convert to fraction form
    7,868.82/10,857.58 = 4,725.07/x
  3. Step 3: Cross multiply
    7,868.82x = 10,857.58 × 4,725.07
  4. Step 4: Simplify right side
    7,868.82x = 51,302,825.53
  5. Step 5: Solve for x
    x = 51,302,825.53/7,868.82
  6. Step 6: Final answer
    x = 6,519.76

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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.