Home / 8,913.86-13,366.70-2,587.30

Finding the Fourth Proportional to 8,913.86, 13,366.70 and 2,587.30

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Solution

The fourth proportional to 8,913.86, 13,366.70 and 2,587.30 is: 3,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.86 : 13,366.70 = 2,587.30 : x
  2. Step 2: Convert to fraction form
    8,913.86/13,366.70 = 2,587.30/x
  3. Step 3: Cross multiply
    8,913.86x = 13,366.70 × 2,587.30
  4. Step 4: Simplify right side
    8,913.86x = 34,583,662.91
  5. Step 5: Solve for x
    x = 34,583,662.91/8,913.86
  6. Step 6: Final answer
    x = 3,879.76

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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.