Home / 9,219.77-12,722.90-5,028.02

Finding the Fourth Proportional to 9,219.77, 12,722.90 and 5,028.02

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Solution

The fourth proportional to 9,219.77, 12,722.90 and 5,028.02 is: 6,938.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.77 : 12,722.90 = 5,028.02 : x
  2. Step 2: Convert to fraction form
    9,219.77/12,722.90 = 5,028.02/x
  3. Step 3: Cross multiply
    9,219.77x = 12,722.90 × 5,028.02
  4. Step 4: Simplify right side
    9,219.77x = 63,970,906.90
  5. Step 5: Solve for x
    x = 63,970,906.90/9,219.77
  6. Step 6: Final answer
    x = 6,938.45

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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.