Home / 13,344.88-18,417.69-12,906.76

Finding the Fourth Proportional to 13,344.88, 18,417.69 and 12,906.76

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Solution

The fourth proportional to 13,344.88, 18,417.69 and 12,906.76 is: 17,813.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.88 : 18,417.69 = 12,906.76 : x
  2. Step 2: Convert to fraction form
    13,344.88/18,417.69 = 12,906.76/x
  3. Step 3: Cross multiply
    13,344.88x = 18,417.69 × 12,906.76
  4. Step 4: Simplify right side
    13,344.88x = 237,712,704.58
  5. Step 5: Solve for x
    x = 237,712,704.58/13,344.88
  6. Step 6: Final answer
    x = 17,813.03

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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.