Home / 9,861.07-13,607.77-5,383.96

Finding the Fourth Proportional to 9,861.07, 13,607.77 and 5,383.96

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Solution

The fourth proportional to 9,861.07, 13,607.77 and 5,383.96 is: 7,429.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.07 : 13,607.77 = 5,383.96 : x
  2. Step 2: Convert to fraction form
    9,861.07/13,607.77 = 5,383.96/x
  3. Step 3: Cross multiply
    9,861.07x = 13,607.77 × 5,383.96
  4. Step 4: Simplify right side
    9,861.07x = 73,263,689.37
  5. Step 5: Solve for x
    x = 73,263,689.37/9,861.07
  6. Step 6: Final answer
    x = 7,429.59

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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.