Home / 13,441.43-20,159.45-12,774.57

Finding the Fourth Proportional to 13,441.43, 20,159.45 and 12,774.57

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Solution

The fourth proportional to 13,441.43, 20,159.45 and 12,774.57 is: 19,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.43 : 20,159.45 = 12,774.57 : x
  2. Step 2: Convert to fraction form
    13,441.43/20,159.45 = 12,774.57/x
  3. Step 3: Cross multiply
    13,441.43x = 20,159.45 × 12,774.57
  4. Step 4: Simplify right side
    13,441.43x = 257,528,241.31
  5. Step 5: Solve for x
    x = 257,528,241.31/13,441.43
  6. Step 6: Final answer
    x = 19,159.30

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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.