Home / 7,984.56-11,007.28-5,619.36

Finding the Fourth Proportional to 7,984.56, 11,007.28 and 5,619.36

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Solution

The fourth proportional to 7,984.56, 11,007.28 and 5,619.36 is: 7,746.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.56 : 11,007.28 = 5,619.36 : x
  2. Step 2: Convert to fraction form
    7,984.56/11,007.28 = 5,619.36/x
  3. Step 3: Cross multiply
    7,984.56x = 11,007.28 × 5,619.36
  4. Step 4: Simplify right side
    7,984.56x = 61,853,868.94
  5. Step 5: Solve for x
    x = 61,853,868.94/7,984.56
  6. Step 6: Final answer
    x = 7,746.68

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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.