Home / 8,821.86-13,226.37-4,139.34

Finding the Fourth Proportional to 8,821.86, 13,226.37 and 4,139.34

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Solution

The fourth proportional to 8,821.86, 13,226.37 and 4,139.34 is: 6,206.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.86 : 13,226.37 = 4,139.34 : x
  2. Step 2: Convert to fraction form
    8,821.86/13,226.37 = 4,139.34/x
  3. Step 3: Cross multiply
    8,821.86x = 13,226.37 × 4,139.34
  4. Step 4: Simplify right side
    8,821.86x = 54,748,442.40
  5. Step 5: Solve for x
    x = 54,748,442.40/8,821.86
  6. Step 6: Final answer
    x = 6,206.00

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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.