Home / 7,912.96-10,916.59-4,923.61

Finding the Fourth Proportional to 7,912.96, 10,916.59 and 4,923.61

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Solution

The fourth proportional to 7,912.96, 10,916.59 and 4,923.61 is: 6,792.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.96 : 10,916.59 = 4,923.61 : x
  2. Step 2: Convert to fraction form
    7,912.96/10,916.59 = 4,923.61/x
  3. Step 3: Cross multiply
    7,912.96x = 10,916.59 × 4,923.61
  4. Step 4: Simplify right side
    7,912.96x = 53,749,031.69
  5. Step 5: Solve for x
    x = 53,749,031.69/7,912.96
  6. Step 6: Final answer
    x = 6,792.53

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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.