Home / 14,062.90-19,406.82-7,689.55

Finding the Fourth Proportional to 14,062.90, 19,406.82 and 7,689.55

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Solution

The fourth proportional to 14,062.90, 19,406.82 and 7,689.55 is: 10,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,062.90 : 19,406.82 = 7,689.55 : x
  2. Step 2: Convert to fraction form
    14,062.90/19,406.82 = 7,689.55/x
  3. Step 3: Cross multiply
    14,062.90x = 19,406.82 × 7,689.55
  4. Step 4: Simplify right side
    14,062.90x = 149,229,712.73
  5. Step 5: Solve for x
    x = 149,229,712.73/14,062.90
  6. Step 6: Final answer
    x = 10,611.59

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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.