Home / 7,912.98-10,919.34-4,376.28

Finding the Fourth Proportional to 7,912.98, 10,919.34 and 4,376.28

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Solution

The fourth proportional to 7,912.98, 10,919.34 and 4,376.28 is: 6,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.98 : 10,919.34 = 4,376.28 : x
  2. Step 2: Convert to fraction form
    7,912.98/10,919.34 = 4,376.28/x
  3. Step 3: Cross multiply
    7,912.98x = 10,919.34 × 4,376.28
  4. Step 4: Simplify right side
    7,912.98x = 47,786,089.26
  5. Step 5: Solve for x
    x = 47,786,089.26/7,912.98
  6. Step 6: Final answer
    x = 6,038.95

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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.