Home / 19,609.60-29,408.08-6,458.84

Finding the Fourth Proportional to 19,609.60, 29,408.08 and 6,458.84

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Solution

The fourth proportional to 19,609.60, 29,408.08 and 6,458.84 is: 9,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,609.60 : 29,408.08 = 6,458.84 : x
  2. Step 2: Convert to fraction form
    19,609.60/29,408.08 = 6,458.84/x
  3. Step 3: Cross multiply
    19,609.60x = 29,408.08 × 6,458.84
  4. Step 4: Simplify right side
    19,609.60x = 189,942,083.43
  5. Step 5: Solve for x
    x = 189,942,083.43/19,609.60
  6. Step 6: Final answer
    x = 9,686.18

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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.