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Finding the Third Proportional to 7,440 and 14,424

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Solution

The third proportional to 7,440 and 14,424 is: 27,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440 : 14,424 = 14,424 : x
  2. Step 2: Convert to fraction form
    7,440/14,424 = 14,424/x
  3. Step 3: Cross multiply
    7,440x = 14,424 × 14,424
  4. Step 4: Simplify right side
    7,440x = 208,051,776
  5. Step 5: Solve for x
    x = 208,051,776/7,440
  6. Step 6: Final answer
    x = 27,963.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.