Home / 7,021.53-9,690.36-5,250.06

Finding the Fourth Proportional to 7,021.53, 9,690.36 and 5,250.06

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Solution

The fourth proportional to 7,021.53, 9,690.36 and 5,250.06 is: 7,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.53 : 9,690.36 = 5,250.06 : x
  2. Step 2: Convert to fraction form
    7,021.53/9,690.36 = 5,250.06/x
  3. Step 3: Cross multiply
    7,021.53x = 9,690.36 × 5,250.06
  4. Step 4: Simplify right side
    7,021.53x = 50,874,971.42
  5. Step 5: Solve for x
    x = 50,874,971.42/7,021.53
  6. Step 6: Final answer
    x = 7,245.57

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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.