Home / 14,121.32-19,487.78-7,833.80

Finding the Fourth Proportional to 14,121.32, 19,487.78 and 7,833.80

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Solution

The fourth proportional to 14,121.32, 19,487.78 and 7,833.80 is: 10,810.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.32 : 19,487.78 = 7,833.80 : x
  2. Step 2: Convert to fraction form
    14,121.32/19,487.78 = 7,833.80/x
  3. Step 3: Cross multiply
    14,121.32x = 19,487.78 × 7,833.80
  4. Step 4: Simplify right side
    14,121.32x = 152,663,370.96
  5. Step 5: Solve for x
    x = 152,663,370.96/14,121.32
  6. Step 6: Final answer
    x = 10,810.84

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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.