Home / 8,155.36-12,230.16-3,535.84

Finding the Fourth Proportional to 8,155.36, 12,230.16 and 3,535.84

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Solution

The fourth proportional to 8,155.36, 12,230.16 and 3,535.84 is: 5,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.36 : 12,230.16 = 3,535.84 : x
  2. Step 2: Convert to fraction form
    8,155.36/12,230.16 = 3,535.84/x
  3. Step 3: Cross multiply
    8,155.36x = 12,230.16 × 3,535.84
  4. Step 4: Simplify right side
    8,155.36x = 43,243,888.93
  5. Step 5: Solve for x
    x = 43,243,888.93/8,155.36
  6. Step 6: Final answer
    x = 5,302.51

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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.