Home / 8,469.09-11,686.28-4,931.42

Finding the Fourth Proportional to 8,469.09, 11,686.28 and 4,931.42

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Solution

The fourth proportional to 8,469.09, 11,686.28 and 4,931.42 is: 6,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.09 : 11,686.28 = 4,931.42 : x
  2. Step 2: Convert to fraction form
    8,469.09/11,686.28 = 4,931.42/x
  3. Step 3: Cross multiply
    8,469.09x = 11,686.28 × 4,931.42
  4. Step 4: Simplify right side
    8,469.09x = 57,629,871.83
  5. Step 5: Solve for x
    x = 57,629,871.83/8,469.09
  6. Step 6: Final answer
    x = 6,804.73

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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.