Home / 19,135.23-28,705.82-9,770.18

Finding the Fourth Proportional to 19,135.23, 28,705.82 and 9,770.18

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Solution

The fourth proportional to 19,135.23, 28,705.82 and 9,770.18 is: 14,656.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.23 : 28,705.82 = 9,770.18 : x
  2. Step 2: Convert to fraction form
    19,135.23/28,705.82 = 9,770.18/x
  3. Step 3: Cross multiply
    19,135.23x = 28,705.82 × 9,770.18
  4. Step 4: Simplify right side
    19,135.23x = 280,460,836.07
  5. Step 5: Solve for x
    x = 280,460,836.07/19,135.23
  6. Step 6: Final answer
    x = 14,656.78

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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.