Home / 13,266.40-18,304.32-8,545

Finding the Fourth Proportional to 13,266.40, 18,304.32 and 8,545

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Solution

The fourth proportional to 13,266.40, 18,304.32 and 8,545 is: 11,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.40 : 18,304.32 = 8,545 : x
  2. Step 2: Convert to fraction form
    13,266.40/18,304.32 = 8,545/x
  3. Step 3: Cross multiply
    13,266.40x = 18,304.32 × 8,545
  4. Step 4: Simplify right side
    13,266.40x = 156,410,414.40
  5. Step 5: Solve for x
    x = 156,410,414.40/13,266.40
  6. Step 6: Final answer
    x = 11,789.97

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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.