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Finding the Fourth Proportional to 14,799.05, 20,420.00 and 8,750.28

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Solution

The fourth proportional to 14,799.05, 20,420.00 and 8,750.28 is: 12,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.05 : 20,420.00 = 8,750.28 : x
  2. Step 2: Convert to fraction form
    14,799.05/20,420.00 = 8,750.28/x
  3. Step 3: Cross multiply
    14,799.05x = 20,420.00 × 8,750.28
  4. Step 4: Simplify right side
    14,799.05x = 178,680,668.37
  5. Step 5: Solve for x
    x = 178,680,668.37/14,799.05
  6. Step 6: Final answer
    x = 12,073.79

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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.