Home / 13,677.44-18,874.40-7,708.95

Finding the Fourth Proportional to 13,677.44, 18,874.40 and 7,708.95

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Solution

The fourth proportional to 13,677.44, 18,874.40 and 7,708.95 is: 10,638.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.44 : 18,874.40 = 7,708.95 : x
  2. Step 2: Convert to fraction form
    13,677.44/18,874.40 = 7,708.95/x
  3. Step 3: Cross multiply
    13,677.44x = 18,874.40 × 7,708.95
  4. Step 4: Simplify right side
    13,677.44x = 145,501,767.34
  5. Step 5: Solve for x
    x = 145,501,767.34/13,677.44
  6. Step 6: Final answer
    x = 10,638.09

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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.