Home / 19,171.65-28,760.31-9,816.96

Finding the Fourth Proportional to 19,171.65, 28,760.31 and 9,816.96

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Solution

The fourth proportional to 19,171.65, 28,760.31 and 9,816.96 is: 14,726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.65 : 28,760.31 = 9,816.96 : x
  2. Step 2: Convert to fraction form
    19,171.65/28,760.31 = 9,816.96/x
  3. Step 3: Cross multiply
    19,171.65x = 28,760.31 × 9,816.96
  4. Step 4: Simplify right side
    19,171.65x = 282,338,812.86
  5. Step 5: Solve for x
    x = 282,338,812.86/19,171.65
  6. Step 6: Final answer
    x = 14,726.89

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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.