Home / 18,129.69-27,197.31-9,810.89

Finding the Fourth Proportional to 18,129.69, 27,197.31 and 9,810.89

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Solution

The fourth proportional to 18,129.69, 27,197.31 and 9,810.89 is: 14,717.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.69 : 27,197.31 = 9,810.89 : x
  2. Step 2: Convert to fraction form
    18,129.69/27,197.31 = 9,810.89/x
  3. Step 3: Cross multiply
    18,129.69x = 27,197.31 × 9,810.89
  4. Step 4: Simplify right side
    18,129.69x = 266,829,680.72
  5. Step 5: Solve for x
    x = 266,829,680.72/18,129.69
  6. Step 6: Final answer
    x = 14,717.83

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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.