Home / 14,521.10-21,737.78-13,135.06

Finding the Fourth Proportional to 14,521.10, 21,737.78 and 13,135.06

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Solution

The fourth proportional to 14,521.10, 21,737.78 and 13,135.06 is: 19,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.10 : 21,737.78 = 13,135.06 : x
  2. Step 2: Convert to fraction form
    14,521.10/21,737.78 = 13,135.06/x
  3. Step 3: Cross multiply
    14,521.10x = 21,737.78 × 13,135.06
  4. Step 4: Simplify right side
    14,521.10x = 285,526,870.20
  5. Step 5: Solve for x
    x = 285,526,870.20/14,521.10
  6. Step 6: Final answer
    x = 19,662.90

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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.