Home / 10,917.56-15,068.67-6,937.90

Finding the Fourth Proportional to 10,917.56, 15,068.67 and 6,937.90

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Solution

The fourth proportional to 10,917.56, 15,068.67 and 6,937.90 is: 9,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.56 : 15,068.67 = 6,937.90 : x
  2. Step 2: Convert to fraction form
    10,917.56/15,068.67 = 6,937.90/x
  3. Step 3: Cross multiply
    10,917.56x = 15,068.67 × 6,937.90
  4. Step 4: Simplify right side
    10,917.56x = 104,544,861.90
  5. Step 5: Solve for x
    x = 104,544,861.90/10,917.56
  6. Step 6: Final answer
    x = 9,575.84

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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.