Home / 8,786.18-12,124.91-4,807.28

Finding the Fourth Proportional to 8,786.18, 12,124.91 and 4,807.28

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Solution

The fourth proportional to 8,786.18, 12,124.91 and 4,807.28 is: 6,634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.18 : 12,124.91 = 4,807.28 : x
  2. Step 2: Convert to fraction form
    8,786.18/12,124.91 = 4,807.28/x
  3. Step 3: Cross multiply
    8,786.18x = 12,124.91 × 4,807.28
  4. Step 4: Simplify right side
    8,786.18x = 58,287,837.34
  5. Step 5: Solve for x
    x = 58,287,837.34/8,786.18
  6. Step 6: Final answer
    x = 6,634.04

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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.