Home / 9,829.82-13,565.45-5,638.07

Finding the Fourth Proportional to 9,829.82, 13,565.45 and 5,638.07

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Solution

The fourth proportional to 9,829.82, 13,565.45 and 5,638.07 is: 7,780.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,829.82 : 13,565.45 = 5,638.07 : x
  2. Step 2: Convert to fraction form
    9,829.82/13,565.45 = 5,638.07/x
  3. Step 3: Cross multiply
    9,829.82x = 13,565.45 × 5,638.07
  4. Step 4: Simplify right side
    9,829.82x = 76,482,956.68
  5. Step 5: Solve for x
    x = 76,482,956.68/9,829.82
  6. Step 6: Final answer
    x = 7,780.71

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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.