Home / 7,913.93-11,871.90-2,916.63

Finding the Fourth Proportional to 7,913.93, 11,871.90 and 2,916.63

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Solution

The fourth proportional to 7,913.93, 11,871.90 and 2,916.63 is: 4,375.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.93 : 11,871.90 = 2,916.63 : x
  2. Step 2: Convert to fraction form
    7,913.93/11,871.90 = 2,916.63/x
  3. Step 3: Cross multiply
    7,913.93x = 11,871.90 × 2,916.63
  4. Step 4: Simplify right side
    7,913.93x = 34,625,939.70
  5. Step 5: Solve for x
    x = 34,625,939.70/7,913.93
  6. Step 6: Final answer
    x = 4,375.32

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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.