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Finding the Fourth Proportional to 13,732, 18,950.20 and 7,444.40

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Solution

The fourth proportional to 13,732, 18,950.20 and 7,444.40 is: 10,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732 : 18,950.20 = 7,444.40 : x
  2. Step 2: Convert to fraction form
    13,732/18,950.20 = 7,444.40/x
  3. Step 3: Cross multiply
    13,732x = 18,950.20 × 7,444.40
  4. Step 4: Simplify right side
    13,732x = 141,072,868.88
  5. Step 5: Solve for x
    x = 141,072,868.88/13,732
  6. Step 6: Final answer
    x = 10,273.29

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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.