Home / 12,817.92-17,688.96-7,516.56

Finding the Fourth Proportional to 12,817.92, 17,688.96 and 7,516.56

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Solution

The fourth proportional to 12,817.92, 17,688.96 and 7,516.56 is: 10,372.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.92 : 17,688.96 = 7,516.56 : x
  2. Step 2: Convert to fraction form
    12,817.92/17,688.96 = 7,516.56/x
  3. Step 3: Cross multiply
    12,817.92x = 17,688.96 × 7,516.56
  4. Step 4: Simplify right side
    12,817.92x = 132,960,129.18
  5. Step 5: Solve for x
    x = 132,960,129.18/12,817.92
  6. Step 6: Final answer
    x = 10,372.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.