Home / 7,913.18-10,919.83-4,328.05

Finding the Fourth Proportional to 7,913.18, 10,919.83 and 4,328.05

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Solution

The fourth proportional to 7,913.18, 10,919.83 and 4,328.05 is: 5,972.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.18 : 10,919.83 = 4,328.05 : x
  2. Step 2: Convert to fraction form
    7,913.18/10,919.83 = 4,328.05/x
  3. Step 3: Cross multiply
    7,913.18x = 10,919.83 × 4,328.05
  4. Step 4: Simplify right side
    7,913.18x = 47,261,560.70
  5. Step 5: Solve for x
    x = 47,261,560.70/7,913.18
  6. Step 6: Final answer
    x = 5,972.51

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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.