Home / 16,731.80-23,090.52-9,178.45

Finding the Fourth Proportional to 16,731.80, 23,090.52 and 9,178.45

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Solution

The fourth proportional to 16,731.80, 23,090.52 and 9,178.45 is: 12,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,731.80 : 23,090.52 = 9,178.45 : x
  2. Step 2: Convert to fraction form
    16,731.80/23,090.52 = 9,178.45/x
  3. Step 3: Cross multiply
    16,731.80x = 23,090.52 × 9,178.45
  4. Step 4: Simplify right side
    16,731.80x = 211,935,159.99
  5. Step 5: Solve for x
    x = 211,935,159.99/16,731.80
  6. Step 6: Final answer
    x = 12,666.61

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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.