Home / 14,382.99-21,561.78-5,611.77

Finding the Fourth Proportional to 14,382.99, 21,561.78 and 5,611.77

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Solution

The fourth proportional to 14,382.99, 21,561.78 and 5,611.77 is: 8,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.99 : 21,561.78 = 5,611.77 : x
  2. Step 2: Convert to fraction form
    14,382.99/21,561.78 = 5,611.77/x
  3. Step 3: Cross multiply
    14,382.99x = 21,561.78 × 5,611.77
  4. Step 4: Simplify right side
    14,382.99x = 120,999,750.15
  5. Step 5: Solve for x
    x = 120,999,750.15/14,382.99
  6. Step 6: Final answer
    x = 8,412.70

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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.