Home / 16,890.48-23,309.64-10,178.28

Finding the Fourth Proportional to 16,890.48, 23,309.64 and 10,178.28

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Solution

The fourth proportional to 16,890.48, 23,309.64 and 10,178.28 is: 14,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.48 : 23,309.64 = 10,178.28 : x
  2. Step 2: Convert to fraction form
    16,890.48/23,309.64 = 10,178.28/x
  3. Step 3: Cross multiply
    16,890.48x = 23,309.64 × 10,178.28
  4. Step 4: Simplify right side
    16,890.48x = 237,252,042.62
  5. Step 5: Solve for x
    x = 237,252,042.62/16,890.48
  6. Step 6: Final answer
    x = 14,046.49

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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.