Home / 8,555.36-12,836.24-3,875.20

Finding the Fourth Proportional to 8,555.36, 12,836.24 and 3,875.20

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Solution

The fourth proportional to 8,555.36, 12,836.24 and 3,875.20 is: 5,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.36 : 12,836.24 = 3,875.20 : x
  2. Step 2: Convert to fraction form
    8,555.36/12,836.24 = 3,875.20/x
  3. Step 3: Cross multiply
    8,555.36x = 12,836.24 × 3,875.20
  4. Step 4: Simplify right side
    8,555.36x = 49,742,997.25
  5. Step 5: Solve for x
    x = 49,742,997.25/8,555.36
  6. Step 6: Final answer
    x = 5,814.25

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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.