Home / 7,965.24-10,989.12-4,820.28

Finding the Fourth Proportional to 7,965.24, 10,989.12 and 4,820.28

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Solution

The fourth proportional to 7,965.24, 10,989.12 and 4,820.28 is: 6,650.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.24 : 10,989.12 = 4,820.28 : x
  2. Step 2: Convert to fraction form
    7,965.24/10,989.12 = 4,820.28/x
  3. Step 3: Cross multiply
    7,965.24x = 10,989.12 × 4,820.28
  4. Step 4: Simplify right side
    7,965.24x = 52,970,635.35
  5. Step 5: Solve for x
    x = 52,970,635.35/7,965.24
  6. Step 6: Final answer
    x = 6,650.22

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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.