Home / 19,131.32-28,705.64-9,766.51

Finding the Fourth Proportional to 19,131.32, 28,705.64 and 9,766.51

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Solution

The fourth proportional to 19,131.32, 28,705.64 and 9,766.51 is: 14,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.32 : 28,705.64 = 9,766.51 : x
  2. Step 2: Convert to fraction form
    19,131.32/28,705.64 = 9,766.51/x
  3. Step 3: Cross multiply
    19,131.32x = 28,705.64 × 9,766.51
  4. Step 4: Simplify right side
    19,131.32x = 280,353,799.52
  5. Step 5: Solve for x
    x = 280,353,799.52/19,131.32
  6. Step 6: Final answer
    x = 14,654.18

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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.