Home / 8,730.63-13,095.72-2,156.81

Finding the Fourth Proportional to 8,730.63, 13,095.72 and 2,156.81

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Solution

The fourth proportional to 8,730.63, 13,095.72 and 2,156.81 is: 3,235.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.63 : 13,095.72 = 2,156.81 : x
  2. Step 2: Convert to fraction form
    8,730.63/13,095.72 = 2,156.81/x
  3. Step 3: Cross multiply
    8,730.63x = 13,095.72 × 2,156.81
  4. Step 4: Simplify right side
    8,730.63x = 28,244,914.37
  5. Step 5: Solve for x
    x = 28,244,914.37/8,730.63
  6. Step 6: Final answer
    x = 3,235.15

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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.