Home / 7,213.82-9,954.87-4,070.30

Finding the Fourth Proportional to 7,213.82, 9,954.87 and 4,070.30

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Solution

The fourth proportional to 7,213.82, 9,954.87 and 4,070.30 is: 5,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.82 : 9,954.87 = 4,070.30 : x
  2. Step 2: Convert to fraction form
    7,213.82/9,954.87 = 4,070.30/x
  3. Step 3: Cross multiply
    7,213.82x = 9,954.87 × 4,070.30
  4. Step 4: Simplify right side
    7,213.82x = 40,519,307.36
  5. Step 5: Solve for x
    x = 40,519,307.36/7,213.82
  6. Step 6: Final answer
    x = 5,616.90

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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.