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Finding the Fourth Proportional to 18,333.71, 25,300.54 and 9,950.21

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Solution

The fourth proportional to 18,333.71, 25,300.54 and 9,950.21 is: 13,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.71 : 25,300.54 = 9,950.21 : x
  2. Step 2: Convert to fraction form
    18,333.71/25,300.54 = 9,950.21/x
  3. Step 3: Cross multiply
    18,333.71x = 25,300.54 × 9,950.21
  4. Step 4: Simplify right side
    18,333.71x = 251,745,666.93
  5. Step 5: Solve for x
    x = 251,745,666.93/18,333.71
  6. Step 6: Final answer
    x = 13,731.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.