Home / 13,891.50-20,845.76-5,570.64

Finding the Fourth Proportional to 13,891.50, 20,845.76 and 5,570.64

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Solution

The fourth proportional to 13,891.50, 20,845.76 and 5,570.64 is: 8,359.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.50 : 20,845.76 = 5,570.64 : x
  2. Step 2: Convert to fraction form
    13,891.50/20,845.76 = 5,570.64/x
  3. Step 3: Cross multiply
    13,891.50x = 20,845.76 × 5,570.64
  4. Step 4: Simplify right side
    13,891.50x = 116,124,196.63
  5. Step 5: Solve for x
    x = 116,124,196.63/13,891.50
  6. Step 6: Final answer
    x = 8,359.37

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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.