Home / 14,310.74-19,737.66-8,639.56

Finding the Fourth Proportional to 14,310.74, 19,737.66 and 8,639.56

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Solution

The fourth proportional to 14,310.74, 19,737.66 and 8,639.56 is: 11,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,310.74 : 19,737.66 = 8,639.56 : x
  2. Step 2: Convert to fraction form
    14,310.74/19,737.66 = 8,639.56/x
  3. Step 3: Cross multiply
    14,310.74x = 19,737.66 × 8,639.56
  4. Step 4: Simplify right side
    14,310.74x = 170,524,697.83
  5. Step 5: Solve for x
    x = 170,524,697.83/14,310.74
  6. Step 6: Final answer
    x = 11,915.85

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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.