Home / 7,942.72-10,955.28-4,916.88

Finding the Fourth Proportional to 7,942.72, 10,955.28 and 4,916.88

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Solution

The fourth proportional to 7,942.72, 10,955.28 and 4,916.88 is: 6,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.72 : 10,955.28 = 4,916.88 : x
  2. Step 2: Convert to fraction form
    7,942.72/10,955.28 = 4,916.88/x
  3. Step 3: Cross multiply
    7,942.72x = 10,955.28 × 4,916.88
  4. Step 4: Simplify right side
    7,942.72x = 53,865,743.27
  5. Step 5: Solve for x
    x = 53,865,743.27/7,942.72
  6. Step 6: Final answer
    x = 6,781.77

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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.