Home / 13,886.48-20,829.72-3,499.04

Finding the Fourth Proportional to 13,886.48, 20,829.72 and 3,499.04

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Solution

The fourth proportional to 13,886.48, 20,829.72 and 3,499.04 is: 5,248.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.48 : 20,829.72 = 3,499.04 : x
  2. Step 2: Convert to fraction form
    13,886.48/20,829.72 = 3,499.04/x
  3. Step 3: Cross multiply
    13,886.48x = 20,829.72 × 3,499.04
  4. Step 4: Simplify right side
    13,886.48x = 72,884,023.47
  5. Step 5: Solve for x
    x = 72,884,023.47/13,886.48
  6. Step 6: Final answer
    x = 5,248.56

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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.