Home / 14,139.65-19,499.68-9,609.09

Finding the Fourth Proportional to 14,139.65, 19,499.68 and 9,609.09

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Solution

The fourth proportional to 14,139.65, 19,499.68 and 9,609.09 is: 13,251.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.65 : 19,499.68 = 9,609.09 : x
  2. Step 2: Convert to fraction form
    14,139.65/19,499.68 = 9,609.09/x
  3. Step 3: Cross multiply
    14,139.65x = 19,499.68 × 9,609.09
  4. Step 4: Simplify right side
    14,139.65x = 187,374,269.60
  5. Step 5: Solve for x
    x = 187,374,269.60/14,139.65
  6. Step 6: Final answer
    x = 13,251.69

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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.