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Finding the Fourth Proportional to 7,374.33, 10,166.63 and 7,145.01

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Solution

The fourth proportional to 7,374.33, 10,166.63 and 7,145.01 is: 9,850.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.33 : 10,166.63 = 7,145.01 : x
  2. Step 2: Convert to fraction form
    7,374.33/10,166.63 = 7,145.01/x
  3. Step 3: Cross multiply
    7,374.33x = 10,166.63 × 7,145.01
  4. Step 4: Simplify right side
    7,374.33x = 72,640,637.29
  5. Step 5: Solve for x
    x = 72,640,637.29/7,374.33
  6. Step 6: Final answer
    x = 9,850.47

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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.