Home / 14,081.80-21,125.21-4,724.86

Finding the Fourth Proportional to 14,081.80, 21,125.21 and 4,724.86

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Solution

The fourth proportional to 14,081.80, 21,125.21 and 4,724.86 is: 7,088.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.80 : 21,125.21 = 4,724.86 : x
  2. Step 2: Convert to fraction form
    14,081.80/21,125.21 = 4,724.86/x
  3. Step 3: Cross multiply
    14,081.80x = 21,125.21 × 4,724.86
  4. Step 4: Simplify right side
    14,081.80x = 99,813,563.48
  5. Step 5: Solve for x
    x = 99,813,563.48/14,081.80
  6. Step 6: Final answer
    x = 7,088.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.