Home / 18,908.43-28,363.95-6,423.36

Finding the Fourth Proportional to 18,908.43, 28,363.95 and 6,423.36

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Solution

The fourth proportional to 18,908.43, 28,363.95 and 6,423.36 is: 9,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.43 : 28,363.95 = 6,423.36 : x
  2. Step 2: Convert to fraction form
    18,908.43/28,363.95 = 6,423.36/x
  3. Step 3: Cross multiply
    18,908.43x = 28,363.95 × 6,423.36
  4. Step 4: Simplify right side
    18,908.43x = 182,191,861.87
  5. Step 5: Solve for x
    x = 182,191,861.87/18,908.43
  6. Step 6: Final answer
    x = 9,635.48

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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.