Home / 13,764.60-20,646.88-3,376.24

Finding the Fourth Proportional to 13,764.60, 20,646.88 and 3,376.24

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Solution

The fourth proportional to 13,764.60, 20,646.88 and 3,376.24 is: 5,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.60 : 20,646.88 = 3,376.24 : x
  2. Step 2: Convert to fraction form
    13,764.60/20,646.88 = 3,376.24/x
  3. Step 3: Cross multiply
    13,764.60x = 20,646.88 × 3,376.24
  4. Step 4: Simplify right side
    13,764.60x = 69,708,822.13
  5. Step 5: Solve for x
    x = 69,708,822.13/13,764.60
  6. Step 6: Final answer
    x = 5,064.36

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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.