Home / 8,629.46-12,957.15-4,935.86

Finding the Fourth Proportional to 8,629.46, 12,957.15 and 4,935.86

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Solution

The fourth proportional to 8,629.46, 12,957.15 and 4,935.86 is: 7,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.46 : 12,957.15 = 4,935.86 : x
  2. Step 2: Convert to fraction form
    8,629.46/12,957.15 = 4,935.86/x
  3. Step 3: Cross multiply
    8,629.46x = 12,957.15 × 4,935.86
  4. Step 4: Simplify right side
    8,629.46x = 63,954,678.40
  5. Step 5: Solve for x
    x = 63,954,678.40/8,629.46
  6. Step 6: Final answer
    x = 7,411.20

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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.