Home / 7,984.16-11,021.72-5,717.28

Finding the Fourth Proportional to 7,984.16, 11,021.72 and 5,717.28

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Solution

The fourth proportional to 7,984.16, 11,021.72 and 5,717.28 is: 7,892.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.16 : 11,021.72 = 5,717.28 : x
  2. Step 2: Convert to fraction form
    7,984.16/11,021.72 = 5,717.28/x
  3. Step 3: Cross multiply
    7,984.16x = 11,021.72 × 5,717.28
  4. Step 4: Simplify right side
    7,984.16x = 63,014,259.32
  5. Step 5: Solve for x
    x = 63,014,259.32/7,984.16
  6. Step 6: Final answer
    x = 7,892.41

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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.