Home / 7,213.20-9,955.20-4,230.24

Finding the Fourth Proportional to 7,213.20, 9,955.20 and 4,230.24

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Solution

The fourth proportional to 7,213.20, 9,955.20 and 4,230.24 is: 5,838.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.20 : 9,955.20 = 4,230.24 : x
  2. Step 2: Convert to fraction form
    7,213.20/9,955.20 = 4,230.24/x
  3. Step 3: Cross multiply
    7,213.20x = 9,955.20 × 4,230.24
  4. Step 4: Simplify right side
    7,213.20x = 42,112,885.25
  5. Step 5: Solve for x
    x = 42,112,885.25/7,213.20
  6. Step 6: Final answer
    x = 5,838.31

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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.