Home / 9,219.90-12,723.52-5,028.14

Finding the Fourth Proportional to 9,219.90, 12,723.52 and 5,028.14

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Solution

The fourth proportional to 9,219.90, 12,723.52 and 5,028.14 is: 6,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.90 : 12,723.52 = 5,028.14 : x
  2. Step 2: Convert to fraction form
    9,219.90/12,723.52 = 5,028.14/x
  3. Step 3: Cross multiply
    9,219.90x = 12,723.52 × 5,028.14
  4. Step 4: Simplify right side
    9,219.90x = 63,975,639.85
  5. Step 5: Solve for x
    x = 63,975,639.85/9,219.90
  6. Step 6: Final answer
    x = 6,938.86

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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.