Home / 11,372.07-15,693.75-6,267.78

Finding the Fourth Proportional to 11,372.07, 15,693.75 and 6,267.78

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Solution

The fourth proportional to 11,372.07, 15,693.75 and 6,267.78 is: 8,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,372.07 : 15,693.75 = 6,267.78 : x
  2. Step 2: Convert to fraction form
    11,372.07/15,693.75 = 6,267.78/x
  3. Step 3: Cross multiply
    11,372.07x = 15,693.75 × 6,267.78
  4. Step 4: Simplify right side
    11,372.07x = 98,364,972.38
  5. Step 5: Solve for x
    x = 98,364,972.38/11,372.07
  6. Step 6: Final answer
    x = 8,649.70

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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.