Home / 14,113.65-19,479.38-8,144.49

Finding the Fourth Proportional to 14,113.65, 19,479.38 and 8,144.49

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Solution

The fourth proportional to 14,113.65, 19,479.38 and 8,144.49 is: 11,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.65 : 19,479.38 = 8,144.49 : x
  2. Step 2: Convert to fraction form
    14,113.65/19,479.38 = 8,144.49/x
  3. Step 3: Cross multiply
    14,113.65x = 19,479.38 × 8,144.49
  4. Step 4: Simplify right side
    14,113.65x = 158,649,574.89
  5. Step 5: Solve for x
    x = 158,649,574.89/14,113.65
  6. Step 6: Final answer
    x = 11,240.86

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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.