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Finding the Fourth Proportional to 14,444.37, 21,636.99 and 9,990.99

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Solution

The fourth proportional to 14,444.37, 21,636.99 and 9,990.99 is: 14,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,444.37 : 21,636.99 = 9,990.99 : x
  2. Step 2: Convert to fraction form
    14,444.37/21,636.99 = 9,990.99/x
  3. Step 3: Cross multiply
    14,444.37x = 21,636.99 × 9,990.99
  4. Step 4: Simplify right side
    14,444.37x = 216,174,950.72
  5. Step 5: Solve for x
    x = 216,174,950.72/14,444.37
  6. Step 6: Final answer
    x = 14,966.04

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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.