Home / 9,819.38-13,535.84-7,690.23

Finding the Fourth Proportional to 9,819.38, 13,535.84 and 7,690.23

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Solution

The fourth proportional to 9,819.38, 13,535.84 and 7,690.23 is: 10,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.38 : 13,535.84 = 7,690.23 : x
  2. Step 2: Convert to fraction form
    9,819.38/13,535.84 = 7,690.23/x
  3. Step 3: Cross multiply
    9,819.38x = 13,535.84 × 7,690.23
  4. Step 4: Simplify right side
    9,819.38x = 104,093,742.07
  5. Step 5: Solve for x
    x = 104,093,742.07/9,819.38
  6. Step 6: Final answer
    x = 10,600.84

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Half scale
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Double scale
Find fourth proportional to 9,820.38, 13,537.22 and 7,691.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.