Home / 14,006.21-21,006.99-4,143.20

Finding the Fourth Proportional to 14,006.21, 21,006.99 and 4,143.20

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Solution

The fourth proportional to 14,006.21, 21,006.99 and 4,143.20 is: 6,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.21 : 21,006.99 = 4,143.20 : x
  2. Step 2: Convert to fraction form
    14,006.21/21,006.99 = 4,143.20/x
  3. Step 3: Cross multiply
    14,006.21x = 21,006.99 × 4,143.20
  4. Step 4: Simplify right side
    14,006.21x = 87,036,055.93
  5. Step 5: Solve for x
    x = 87,036,055.93/14,006.21
  6. Step 6: Final answer
    x = 6,214.11

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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.