Home / 14,145.41-21,192.80-9,451.20

Finding the Fourth Proportional to 14,145.41, 21,192.80 and 9,451.20

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Solution

The fourth proportional to 14,145.41, 21,192.80 and 9,451.20 is: 14,159.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.41 : 21,192.80 = 9,451.20 : x
  2. Step 2: Convert to fraction form
    14,145.41/21,192.80 = 9,451.20/x
  3. Step 3: Cross multiply
    14,145.41x = 21,192.80 × 9,451.20
  4. Step 4: Simplify right side
    14,145.41x = 200,297,344.10
  5. Step 5: Solve for x
    x = 200,297,344.10/14,145.41
  6. Step 6: Final answer
    x = 14,159.89

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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.