Home / 14,799.38-20,423.75-8,511.75

Finding the Fourth Proportional to 14,799.38, 20,423.75 and 8,511.75

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Solution

The fourth proportional to 14,799.38, 20,423.75 and 8,511.75 is: 11,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.38 : 20,423.75 = 8,511.75 : x
  2. Step 2: Convert to fraction form
    14,799.38/20,423.75 = 8,511.75/x
  3. Step 3: Cross multiply
    14,799.38x = 20,423.75 × 8,511.75
  4. Step 4: Simplify right side
    14,799.38x = 173,841,811.50
  5. Step 5: Solve for x
    x = 173,841,811.50/14,799.38
  6. Step 6: Final answer
    x = 11,746.56

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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.