Home / 13,643.39-20,449.40-6,248.63

Finding the Fourth Proportional to 13,643.39, 20,449.40 and 6,248.63

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Solution

The fourth proportional to 13,643.39, 20,449.40 and 6,248.63 is: 9,365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.39 : 20,449.40 = 6,248.63 : x
  2. Step 2: Convert to fraction form
    13,643.39/20,449.40 = 6,248.63/x
  3. Step 3: Cross multiply
    13,643.39x = 20,449.40 × 6,248.63
  4. Step 4: Simplify right side
    13,643.39x = 127,780,754.20
  5. Step 5: Solve for x
    x = 127,780,754.20/13,643.39
  6. Step 6: Final answer
    x = 9,365.76

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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.