Home / 13,441.32-20,159.26-12,774.45

Finding the Fourth Proportional to 13,441.32, 20,159.26 and 12,774.45

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Solution

The fourth proportional to 13,441.32, 20,159.26 and 12,774.45 is: 19,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.32 : 20,159.26 = 12,774.45 : x
  2. Step 2: Convert to fraction form
    13,441.32/20,159.26 = 12,774.45/x
  3. Step 3: Cross multiply
    13,441.32x = 20,159.26 × 12,774.45
  4. Step 4: Simplify right side
    13,441.32x = 257,523,426.97
  5. Step 5: Solve for x
    x = 257,523,426.97/13,441.32
  6. Step 6: Final answer
    x = 19,159.09

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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.