Home / 11,077.37-15,278.14-7,098.86

Finding the Fourth Proportional to 11,077.37, 15,278.14 and 7,098.86

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Solution

The fourth proportional to 11,077.37, 15,278.14 and 7,098.86 is: 9,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.37 : 15,278.14 = 7,098.86 : x
  2. Step 2: Convert to fraction form
    11,077.37/15,278.14 = 7,098.86/x
  3. Step 3: Cross multiply
    11,077.37x = 15,278.14 × 7,098.86
  4. Step 4: Simplify right side
    11,077.37x = 108,457,376.92
  5. Step 5: Solve for x
    x = 108,457,376.92/11,077.37
  6. Step 6: Final answer
    x = 9,790.90

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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.