Home / 14,081.80-21,122.70-9,416.20

Finding the Fourth Proportional to 14,081.80, 21,122.70 and 9,416.20

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Solution

The fourth proportional to 14,081.80, 21,122.70 and 9,416.20 is: 14,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.80 : 21,122.70 = 9,416.20 : x
  2. Step 2: Convert to fraction form
    14,081.80/21,122.70 = 9,416.20/x
  3. Step 3: Cross multiply
    14,081.80x = 21,122.70 × 9,416.20
  4. Step 4: Simplify right side
    14,081.80x = 198,895,567.74
  5. Step 5: Solve for x
    x = 198,895,567.74/14,081.80
  6. Step 6: Final answer
    x = 14,124.30

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1.5x scale

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.