Home / 11,376.86-17,065.27-5,139.06

Finding the Fourth Proportional to 11,376.86, 17,065.27 and 5,139.06

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Solution

The fourth proportional to 11,376.86, 17,065.27 and 5,139.06 is: 7,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.86 : 17,065.27 = 5,139.06 : x
  2. Step 2: Convert to fraction form
    11,376.86/17,065.27 = 5,139.06/x
  3. Step 3: Cross multiply
    11,376.86x = 17,065.27 × 5,139.06
  4. Step 4: Simplify right side
    11,376.86x = 87,699,446.45
  5. Step 5: Solve for x
    x = 87,699,446.45/11,376.86
  6. Step 6: Final answer
    x = 7,708.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.