Home / 7,947.36-11,916.42-5,317.87

Finding the Fourth Proportional to 7,947.36, 11,916.42 and 5,317.87

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Solution

The fourth proportional to 7,947.36, 11,916.42 and 5,317.87 is: 7,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.36 : 11,916.42 = 5,317.87 : x
  2. Step 2: Convert to fraction form
    7,947.36/11,916.42 = 5,317.87/x
  3. Step 3: Cross multiply
    7,947.36x = 11,916.42 × 5,317.87
  4. Step 4: Simplify right side
    7,947.36x = 63,369,972.43
  5. Step 5: Solve for x
    x = 63,369,972.43/7,947.36
  6. Step 6: Final answer
    x = 7,973.71

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1.5x scale

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.