Home / 8,786.08-12,130.32-5,476

Finding the Fourth Proportional to 8,786.08, 12,130.32 and 5,476

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Solution

The fourth proportional to 8,786.08, 12,130.32 and 5,476 is: 7,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.08 : 12,130.32 = 5,476 : x
  2. Step 2: Convert to fraction form
    8,786.08/12,130.32 = 5,476/x
  3. Step 3: Cross multiply
    8,786.08x = 12,130.32 × 5,476
  4. Step 4: Simplify right side
    8,786.08x = 66,425,632.32
  5. Step 5: Solve for x
    x = 66,425,632.32/8,786.08
  6. Step 6: Final answer
    x = 7,560.33

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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.