Home / 12,933.60-17,829.90-8,677.08

Finding the Fourth Proportional to 12,933.60, 17,829.90 and 8,677.08

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Solution

The fourth proportional to 12,933.60, 17,829.90 and 8,677.08 is: 11,961.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.60 : 17,829.90 = 8,677.08 : x
  2. Step 2: Convert to fraction form
    12,933.60/17,829.90 = 8,677.08/x
  3. Step 3: Cross multiply
    12,933.60x = 17,829.90 × 8,677.08
  4. Step 4: Simplify right side
    12,933.60x = 154,711,468.69
  5. Step 5: Solve for x
    x = 154,711,468.69/12,933.60
  6. Step 6: Final answer
    x = 11,961.98

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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.