Home / 7,212.90-9,954.41-5,299.45

Finding the Fourth Proportional to 7,212.90, 9,954.41 and 5,299.45

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Solution

The fourth proportional to 7,212.90, 9,954.41 and 5,299.45 is: 7,313.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.90 : 9,954.41 = 5,299.45 : x
  2. Step 2: Convert to fraction form
    7,212.90/9,954.41 = 5,299.45/x
  3. Step 3: Cross multiply
    7,212.90x = 9,954.41 × 5,299.45
  4. Step 4: Simplify right side
    7,212.90x = 52,752,898.07
  5. Step 5: Solve for x
    x = 52,752,898.07/7,212.90
  6. Step 6: Final answer
    x = 7,313.69

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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.