Home / 11,272.12-15,553.74-7,293.40

Finding the Fourth Proportional to 11,272.12, 15,553.74 and 7,293.40

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Solution

The fourth proportional to 11,272.12, 15,553.74 and 7,293.40 is: 10,063.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.12 : 15,553.74 = 7,293.40 : x
  2. Step 2: Convert to fraction form
    11,272.12/15,553.74 = 7,293.40/x
  3. Step 3: Cross multiply
    11,272.12x = 15,553.74 × 7,293.40
  4. Step 4: Simplify right side
    11,272.12x = 113,439,647.32
  5. Step 5: Solve for x
    x = 113,439,647.32/11,272.12
  6. Step 6: Final answer
    x = 10,063.74

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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.