Home / 10,104.40-13,942.48-5,628.16

Finding the Fourth Proportional to 10,104.40, 13,942.48 and 5,628.16

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Solution

The fourth proportional to 10,104.40, 13,942.48 and 5,628.16 is: 7,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.40 : 13,942.48 = 5,628.16 : x
  2. Step 2: Convert to fraction form
    10,104.40/13,942.48 = 5,628.16/x
  3. Step 3: Cross multiply
    10,104.40x = 13,942.48 × 5,628.16
  4. Step 4: Simplify right side
    10,104.40x = 78,470,508.24
  5. Step 5: Solve for x
    x = 78,470,508.24/10,104.40
  6. Step 6: Final answer
    x = 7,765.97

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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.