Home / 13,990.56-19,306.24-7,701.72

Finding the Fourth Proportional to 13,990.56, 19,306.24 and 7,701.72

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Solution

The fourth proportional to 13,990.56, 19,306.24 and 7,701.72 is: 10,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.56 : 19,306.24 = 7,701.72 : x
  2. Step 2: Convert to fraction form
    13,990.56/19,306.24 = 7,701.72/x
  3. Step 3: Cross multiply
    13,990.56x = 19,306.24 × 7,701.72
  4. Step 4: Simplify right side
    13,990.56x = 148,691,254.73
  5. Step 5: Solve for x
    x = 148,691,254.73/13,990.56
  6. Step 6: Final answer
    x = 10,627.97

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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.