Home / 13,394.85-18,481.14-10,553.40

Finding the Fourth Proportional to 13,394.85, 18,481.14 and 10,553.40

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Solution

The fourth proportional to 13,394.85, 18,481.14 and 10,553.40 is: 14,560.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.85 : 18,481.14 = 10,553.40 : x
  2. Step 2: Convert to fraction form
    13,394.85/18,481.14 = 10,553.40/x
  3. Step 3: Cross multiply
    13,394.85x = 18,481.14 × 10,553.40
  4. Step 4: Simplify right side
    13,394.85x = 195,038,862.88
  5. Step 5: Solve for x
    x = 195,038,862.88/13,394.85
  6. Step 6: Final answer
    x = 14,560.74

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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.