Home / 16,455.63-22,704.80-9,379.47

Finding the Fourth Proportional to 16,455.63, 22,704.80 and 9,379.47

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Solution

The fourth proportional to 16,455.63, 22,704.80 and 9,379.47 is: 12,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,455.63 : 22,704.80 = 9,379.47 : x
  2. Step 2: Convert to fraction form
    16,455.63/22,704.80 = 9,379.47/x
  3. Step 3: Cross multiply
    16,455.63x = 22,704.80 × 9,379.47
  4. Step 4: Simplify right side
    16,455.63x = 212,958,943.56
  5. Step 5: Solve for x
    x = 212,958,943.56/16,455.63
  6. Step 6: Final answer
    x = 12,941.40

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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.