Home / 14,199.32-21,282.84-8,640.43

Finding the Fourth Proportional to 14,199.32, 21,282.84 and 8,640.43

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Solution

The fourth proportional to 14,199.32, 21,282.84 and 8,640.43 is: 12,950.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,199.32 : 21,282.84 = 8,640.43 : x
  2. Step 2: Convert to fraction form
    14,199.32/21,282.84 = 8,640.43/x
  3. Step 3: Cross multiply
    14,199.32x = 21,282.84 × 8,640.43
  4. Step 4: Simplify right side
    14,199.32x = 183,892,836.01
  5. Step 5: Solve for x
    x = 183,892,836.01/14,199.32
  6. Step 6: Final answer
    x = 12,950.82

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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.