Home / 14,877.48-20,520.18-12,635.82

Finding the Fourth Proportional to 14,877.48, 20,520.18 and 12,635.82

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Solution

The fourth proportional to 14,877.48, 20,520.18 and 12,635.82 is: 17,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.48 : 20,520.18 = 12,635.82 : x
  2. Step 2: Convert to fraction form
    14,877.48/20,520.18 = 12,635.82/x
  3. Step 3: Cross multiply
    14,877.48x = 20,520.18 × 12,635.82
  4. Step 4: Simplify right side
    14,877.48x = 259,289,300.85
  5. Step 5: Solve for x
    x = 259,289,300.85/14,877.48
  6. Step 6: Final answer
    x = 17,428.31

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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.