Home / 14,053.10-21,116.10-12,449.30

Finding the Fourth Proportional to 14,053.10, 21,116.10 and 12,449.30

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Solution

The fourth proportional to 14,053.10, 21,116.10 and 12,449.30 is: 18,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,053.10 : 21,116.10 = 12,449.30 : x
  2. Step 2: Convert to fraction form
    14,053.10/21,116.10 = 12,449.30/x
  3. Step 3: Cross multiply
    14,053.10x = 21,116.10 × 12,449.30
  4. Step 4: Simplify right side
    14,053.10x = 262,880,663.73
  5. Step 5: Solve for x
    x = 262,880,663.73/14,053.10
  6. Step 6: Final answer
    x = 18,706.24

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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.