Home / 13,877.79-20,819.26-4,392.50

Finding the Fourth Proportional to 13,877.79, 20,819.26 and 4,392.50

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Solution

The fourth proportional to 13,877.79, 20,819.26 and 4,392.50 is: 6,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.79 : 20,819.26 = 4,392.50 : x
  2. Step 2: Convert to fraction form
    13,877.79/20,819.26 = 4,392.50/x
  3. Step 3: Cross multiply
    13,877.79x = 20,819.26 × 4,392.50
  4. Step 4: Simplify right side
    13,877.79x = 91,448,599.55
  5. Step 5: Solve for x
    x = 91,448,599.55/13,877.79
  6. Step 6: Final answer
    x = 6,589.57

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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.