Home / 14,991.24-20,686.83-8,276.88

Finding the Fourth Proportional to 14,991.24, 20,686.83 and 8,276.88

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Solution

The fourth proportional to 14,991.24, 20,686.83 and 8,276.88 is: 11,421.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.24 : 20,686.83 = 8,276.88 : x
  2. Step 2: Convert to fraction form
    14,991.24/20,686.83 = 8,276.88/x
  3. Step 3: Cross multiply
    14,991.24x = 20,686.83 × 8,276.88
  4. Step 4: Simplify right side
    14,991.24x = 171,222,409.49
  5. Step 5: Solve for x
    x = 171,222,409.49/14,991.24
  6. Step 6: Final answer
    x = 11,421.50

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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.