Home / 14,757.29-20,365.02-8,789.21

Finding the Fourth Proportional to 14,757.29, 20,365.02 and 8,789.21

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Solution

The fourth proportional to 14,757.29, 20,365.02 and 8,789.21 is: 12,129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,757.29 : 20,365.02 = 8,789.21 : x
  2. Step 2: Convert to fraction form
    14,757.29/20,365.02 = 8,789.21/x
  3. Step 3: Cross multiply
    14,757.29x = 20,365.02 × 8,789.21
  4. Step 4: Simplify right side
    14,757.29x = 178,992,411.98
  5. Step 5: Solve for x
    x = 178,992,411.98/14,757.29
  6. Step 6: Final answer
    x = 12,129.09

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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.