Home / 14,288.15-19,718.39-7,915.44

Finding the Fourth Proportional to 14,288.15, 19,718.39 and 7,915.44

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Solution

The fourth proportional to 14,288.15, 19,718.39 and 7,915.44 is: 10,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.15 : 19,718.39 = 7,915.44 : x
  2. Step 2: Convert to fraction form
    14,288.15/19,718.39 = 7,915.44/x
  3. Step 3: Cross multiply
    14,288.15x = 19,718.39 × 7,915.44
  4. Step 4: Simplify right side
    14,288.15x = 156,079,826.67
  5. Step 5: Solve for x
    x = 156,079,826.67/14,288.15
  6. Step 6: Final answer
    x = 10,923.72

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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.