Home / 12,956.90-17,775.45-12,329.42

Finding the Fourth Proportional to 12,956.90, 17,775.45 and 12,329.42

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Solution

The fourth proportional to 12,956.90, 17,775.45 and 12,329.42 is: 16,914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.90 : 17,775.45 = 12,329.42 : x
  2. Step 2: Convert to fraction form
    12,956.90/17,775.45 = 12,329.42/x
  3. Step 3: Cross multiply
    12,956.90x = 17,775.45 × 12,329.42
  4. Step 4: Simplify right side
    12,956.90x = 219,160,899.86
  5. Step 5: Solve for x
    x = 219,160,899.86/12,956.90
  6. Step 6: Final answer
    x = 16,914.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.