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Finding the Fourth Proportional to 7,212.73, 9,950.02 and 5,616.55

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Solution

The fourth proportional to 7,212.73, 9,950.02 and 5,616.55 is: 7,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.73 : 9,950.02 = 5,616.55 : x
  2. Step 2: Convert to fraction form
    7,212.73/9,950.02 = 5,616.55/x
  3. Step 3: Cross multiply
    7,212.73x = 9,950.02 × 5,616.55
  4. Step 4: Simplify right side
    7,212.73x = 55,884,784.83
  5. Step 5: Solve for x
    x = 55,884,784.83/7,212.73
  6. Step 6: Final answer
    x = 7,748.08

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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.