Home / 19,061.20-28,609.20-9,707.68

Finding the Fourth Proportional to 19,061.20, 28,609.20 and 9,707.68

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Solution

The fourth proportional to 19,061.20, 28,609.20 and 9,707.68 is: 14,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,061.20 : 28,609.20 = 9,707.68 : x
  2. Step 2: Convert to fraction form
    19,061.20/28,609.20 = 9,707.68/x
  3. Step 3: Cross multiply
    19,061.20x = 28,609.20 × 9,707.68
  4. Step 4: Simplify right side
    19,061.20x = 277,728,958.66
  5. Step 5: Solve for x
    x = 277,728,958.66/19,061.20
  6. Step 6: Final answer
    x = 14,570.38

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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.