Home / 7,212.76-9,953.61-4,068.96

Finding the Fourth Proportional to 7,212.76, 9,953.61 and 4,068.96

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Solution

The fourth proportional to 7,212.76, 9,953.61 and 4,068.96 is: 5,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.76 : 9,953.61 = 4,068.96 : x
  2. Step 2: Convert to fraction form
    7,212.76/9,953.61 = 4,068.96/x
  3. Step 3: Cross multiply
    7,212.76x = 9,953.61 × 4,068.96
  4. Step 4: Simplify right side
    7,212.76x = 40,500,791.18
  5. Step 5: Solve for x
    x = 40,500,791.18/7,212.76
  6. Step 6: Final answer
    x = 5,615.16

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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.