Home / 7,018.13-10,518.99-3,896.64

Finding the Fourth Proportional to 7,018.13, 10,518.99 and 3,896.64

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Solution

The fourth proportional to 7,018.13, 10,518.99 and 3,896.64 is: 5,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.13 : 10,518.99 = 3,896.64 : x
  2. Step 2: Convert to fraction form
    7,018.13/10,518.99 = 3,896.64/x
  3. Step 3: Cross multiply
    7,018.13x = 10,518.99 × 3,896.64
  4. Step 4: Simplify right side
    7,018.13x = 40,988,717.19
  5. Step 5: Solve for x
    x = 40,988,717.19/7,018.13
  6. Step 6: Final answer
    x = 5,840.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.