Home / 19,162.62-28,740.87-9,809.55

Finding the Fourth Proportional to 19,162.62, 28,740.87 and 9,809.55

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Solution

The fourth proportional to 19,162.62, 28,740.87 and 9,809.55 is: 14,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162.62 : 28,740.87 = 9,809.55 : x
  2. Step 2: Convert to fraction form
    19,162.62/28,740.87 = 9,809.55/x
  3. Step 3: Cross multiply
    19,162.62x = 28,740.87 × 9,809.55
  4. Step 4: Simplify right side
    19,162.62x = 281,935,001.31
  5. Step 5: Solve for x
    x = 281,935,001.31/19,162.62
  6. Step 6: Final answer
    x = 14,712.76

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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.