Home / 7,984.48-11,019.18-4,628.20

Finding the Fourth Proportional to 7,984.48, 11,019.18 and 4,628.20

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Solution

The fourth proportional to 7,984.48, 11,019.18 and 4,628.20 is: 6,387.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.48 : 11,019.18 = 4,628.20 : x
  2. Step 2: Convert to fraction form
    7,984.48/11,019.18 = 4,628.20/x
  3. Step 3: Cross multiply
    7,984.48x = 11,019.18 × 4,628.20
  4. Step 4: Simplify right side
    7,984.48x = 50,998,968.88
  5. Step 5: Solve for x
    x = 50,998,968.88/7,984.48
  6. Step 6: Final answer
    x = 6,387.26

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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.