Home / 13,645.10-18,805.56-10,264.97

Finding the Fourth Proportional to 13,645.10, 18,805.56 and 10,264.97

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Solution

The fourth proportional to 13,645.10, 18,805.56 and 10,264.97 is: 14,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.10 : 18,805.56 = 10,264.97 : x
  2. Step 2: Convert to fraction form
    13,645.10/18,805.56 = 10,264.97/x
  3. Step 3: Cross multiply
    13,645.10x = 18,805.56 × 10,264.97
  4. Step 4: Simplify right side
    13,645.10x = 193,038,509.23
  5. Step 5: Solve for x
    x = 193,038,509.23/13,645.10
  6. Step 6: Final answer
    x = 14,147.09

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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.