Home / 7,909.20-10,913.50-4,372.44

Finding the Fourth Proportional to 7,909.20, 10,913.50 and 4,372.44

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Solution

The fourth proportional to 7,909.20, 10,913.50 and 4,372.44 is: 6,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.20 : 10,913.50 = 4,372.44 : x
  2. Step 2: Convert to fraction form
    7,909.20/10,913.50 = 4,372.44/x
  3. Step 3: Cross multiply
    7,909.20x = 10,913.50 × 4,372.44
  4. Step 4: Simplify right side
    7,909.20x = 47,718,588.48
  5. Step 5: Solve for x
    x = 47,718,588.48/7,909.20
  6. Step 6: Final answer
    x = 6,033.30

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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.