Home / 7,018.78-9,686.58-5,247.34

Finding the Fourth Proportional to 7,018.78, 9,686.58 and 5,247.34

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Solution

The fourth proportional to 7,018.78, 9,686.58 and 5,247.34 is: 7,241.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.78 : 9,686.58 = 5,247.34 : x
  2. Step 2: Convert to fraction form
    7,018.78/9,686.58 = 5,247.34/x
  3. Step 3: Cross multiply
    7,018.78x = 9,686.58 × 5,247.34
  4. Step 4: Simplify right side
    7,018.78x = 50,828,778.70
  5. Step 5: Solve for x
    x = 50,828,778.70/7,018.78
  6. Step 6: Final answer
    x = 7,241.83

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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.