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Finding the Fourth Proportional to 11,362.60, 15,671.49 and 7,384.99

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Solution

The fourth proportional to 11,362.60, 15,671.49 and 7,384.99 is: 10,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,362.60 : 15,671.49 = 7,384.99 : x
  2. Step 2: Convert to fraction form
    11,362.60/15,671.49 = 7,384.99/x
  3. Step 3: Cross multiply
    11,362.60x = 15,671.49 × 7,384.99
  4. Step 4: Simplify right side
    11,362.60x = 115,733,796.94
  5. Step 5: Solve for x
    x = 115,733,796.94/11,362.60
  6. Step 6: Final answer
    x = 10,185.50

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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.