Home / 13,427.72-18,536.58-10,436.36

Finding the Fourth Proportional to 13,427.72, 18,536.58 and 10,436.36

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Solution

The fourth proportional to 13,427.72, 18,536.58 and 10,436.36 is: 14,407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.72 : 18,536.58 = 10,436.36 : x
  2. Step 2: Convert to fraction form
    13,427.72/18,536.58 = 10,436.36/x
  3. Step 3: Cross multiply
    13,427.72x = 18,536.58 × 10,436.36
  4. Step 4: Simplify right side
    13,427.72x = 193,454,422.05
  5. Step 5: Solve for x
    x = 193,454,422.05/13,427.72
  6. Step 6: Final answer
    x = 14,407.09

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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.