Home / 14,742.47-20,344.59-8,028.09

Finding the Fourth Proportional to 14,742.47, 20,344.59 and 8,028.09

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Solution

The fourth proportional to 14,742.47, 20,344.59 and 8,028.09 is: 11,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.47 : 20,344.59 = 8,028.09 : x
  2. Step 2: Convert to fraction form
    14,742.47/20,344.59 = 8,028.09/x
  3. Step 3: Cross multiply
    14,742.47x = 20,344.59 × 8,028.09
  4. Step 4: Simplify right side
    14,742.47x = 163,328,199.53
  5. Step 5: Solve for x
    x = 163,328,199.53/14,742.47
  6. Step 6: Final answer
    x = 11,078.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.