Home / 13,286.44-19,931.64-8,284.74

Finding the Fourth Proportional to 13,286.44, 19,931.64 and 8,284.74

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Solution

The fourth proportional to 13,286.44, 19,931.64 and 8,284.74 is: 12,428.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.44 : 19,931.64 = 8,284.74 : x
  2. Step 2: Convert to fraction form
    13,286.44/19,931.64 = 8,284.74/x
  3. Step 3: Cross multiply
    13,286.44x = 19,931.64 × 8,284.74
  4. Step 4: Simplify right side
    13,286.44x = 165,128,455.17
  5. Step 5: Solve for x
    x = 165,128,455.17/13,286.44
  6. Step 6: Final answer
    x = 12,428.34

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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.