Home / 7,911.41-10,916.64-5,082.68

Finding the Fourth Proportional to 7,911.41, 10,916.64 and 5,082.68

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Solution

The fourth proportional to 7,911.41, 10,916.64 and 5,082.68 is: 7,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.41 : 10,916.64 = 5,082.68 : x
  2. Step 2: Convert to fraction form
    7,911.41/10,916.64 = 5,082.68/x
  3. Step 3: Cross multiply
    7,911.41x = 10,916.64 × 5,082.68
  4. Step 4: Simplify right side
    7,911.41x = 55,485,815.09
  5. Step 5: Solve for x
    x = 55,485,815.09/7,911.41
  6. Step 6: Final answer
    x = 7,013.40

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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.