Home / 15,575.60-21,494.68-8,860.96

Finding the Fourth Proportional to 15,575.60, 21,494.68 and 8,860.96

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Solution

The fourth proportional to 15,575.60, 21,494.68 and 8,860.96 is: 12,228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.60 : 21,494.68 = 8,860.96 : x
  2. Step 2: Convert to fraction form
    15,575.60/21,494.68 = 8,860.96/x
  3. Step 3: Cross multiply
    15,575.60x = 21,494.68 × 8,860.96
  4. Step 4: Simplify right side
    15,575.60x = 190,463,499.69
  5. Step 5: Solve for x
    x = 190,463,499.69/15,575.60
  6. Step 6: Final answer
    x = 12,228.33

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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.