Home / 7,213.10-9,954.15-4,230.70

Finding the Fourth Proportional to 7,213.10, 9,954.15 and 4,230.70

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Solution

The fourth proportional to 7,213.10, 9,954.15 and 4,230.70 is: 5,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.10 : 9,954.15 = 4,230.70 : x
  2. Step 2: Convert to fraction form
    7,213.10/9,954.15 = 4,230.70/x
  3. Step 3: Cross multiply
    7,213.10x = 9,954.15 × 4,230.70
  4. Step 4: Simplify right side
    7,213.10x = 42,113,022.41
  5. Step 5: Solve for x
    x = 42,113,022.41/7,213.10
  6. Step 6: Final answer
    x = 5,838.41

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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.