Home / 14,379.76-21,567.84-10,687.40

Finding the Fourth Proportional to 14,379.76, 21,567.84 and 10,687.40

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Solution

The fourth proportional to 14,379.76, 21,567.84 and 10,687.40 is: 16,029.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.76 : 21,567.84 = 10,687.40 : x
  2. Step 2: Convert to fraction form
    14,379.76/21,567.84 = 10,687.40/x
  3. Step 3: Cross multiply
    14,379.76x = 21,567.84 × 10,687.40
  4. Step 4: Simplify right side
    14,379.76x = 230,504,133.22
  5. Step 5: Solve for x
    x = 230,504,133.22/14,379.76
  6. Step 6: Final answer
    x = 16,029.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.