Home / 14,423.20-19,903.68-8,135.68

Finding the Fourth Proportional to 14,423.20, 19,903.68 and 8,135.68

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Solution

The fourth proportional to 14,423.20, 19,903.68 and 8,135.68 is: 11,227.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,423.20 : 19,903.68 = 8,135.68 : x
  2. Step 2: Convert to fraction form
    14,423.20/19,903.68 = 8,135.68/x
  3. Step 3: Cross multiply
    14,423.20x = 19,903.68 × 8,135.68
  4. Step 4: Simplify right side
    14,423.20x = 161,929,971.30
  5. Step 5: Solve for x
    x = 161,929,971.30/14,423.20
  6. Step 6: Final answer
    x = 11,227.05

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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.