Home / 11,272.63-15,553.43-7,288.95

Finding the Fourth Proportional to 11,272.63, 15,553.43 and 7,288.95

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Solution

The fourth proportional to 11,272.63, 15,553.43 and 7,288.95 is: 10,056.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.63 : 15,553.43 = 7,288.95 : x
  2. Step 2: Convert to fraction form
    11,272.63/15,553.43 = 7,288.95/x
  3. Step 3: Cross multiply
    11,272.63x = 15,553.43 × 7,288.95
  4. Step 4: Simplify right side
    11,272.63x = 113,368,135.32
  5. Step 5: Solve for x
    x = 113,368,135.32/11,272.63
  6. Step 6: Final answer
    x = 10,056.94

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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.