Home / 14,786.80-20,400.89-9,753.50

Finding the Fourth Proportional to 14,786.80, 20,400.89 and 9,753.50

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Solution

The fourth proportional to 14,786.80, 20,400.89 and 9,753.50 is: 13,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.80 : 20,400.89 = 9,753.50 : x
  2. Step 2: Convert to fraction form
    14,786.80/20,400.89 = 9,753.50/x
  3. Step 3: Cross multiply
    14,786.80x = 20,400.89 × 9,753.50
  4. Step 4: Simplify right side
    14,786.80x = 198,980,082.85
  5. Step 5: Solve for x
    x = 198,980,082.85/14,786.80
  6. Step 6: Final answer
    x = 13,456.60

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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.