Home / 8,786.09-12,124.80-4,807.19

Finding the Fourth Proportional to 8,786.09, 12,124.80 and 4,807.19

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Solution

The fourth proportional to 8,786.09, 12,124.80 and 4,807.19 is: 6,633.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.09 : 12,124.80 = 4,807.19 : x
  2. Step 2: Convert to fraction form
    8,786.09/12,124.80 = 4,807.19/x
  3. Step 3: Cross multiply
    8,786.09x = 12,124.80 × 4,807.19
  4. Step 4: Simplify right side
    8,786.09x = 58,286,217.31
  5. Step 5: Solve for x
    x = 58,286,217.31/8,786.09
  6. Step 6: Final answer
    x = 6,633.92

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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.