Home / 9,639.92-14,457-2,715.12

Finding the Fourth Proportional to 9,639.92, 14,457 and 2,715.12

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Solution

The fourth proportional to 9,639.92, 14,457 and 2,715.12 is: 4,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.92 : 14,457 = 2,715.12 : x
  2. Step 2: Convert to fraction form
    9,639.92/14,457 = 2,715.12/x
  3. Step 3: Cross multiply
    9,639.92x = 14,457 × 2,715.12
  4. Step 4: Simplify right side
    9,639.92x = 39,252,489.84
  5. Step 5: Solve for x
    x = 39,252,489.84/9,639.92
  6. Step 6: Final answer
    x = 4,071.87

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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.