Home / 8,956.94-13,440.81-3,117.65

Finding the Fourth Proportional to 8,956.94, 13,440.81 and 3,117.65

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Solution

The fourth proportional to 8,956.94, 13,440.81 and 3,117.65 is: 4,678.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.94 : 13,440.81 = 3,117.65 : x
  2. Step 2: Convert to fraction form
    8,956.94/13,440.81 = 3,117.65/x
  3. Step 3: Cross multiply
    8,956.94x = 13,440.81 × 3,117.65
  4. Step 4: Simplify right side
    8,956.94x = 41,903,741.30
  5. Step 5: Solve for x
    x = 41,903,741.30/8,956.94
  6. Step 6: Final answer
    x = 4,678.35

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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.