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Finding the Fourth Proportional to 7,150.54, 9,867.72 and 4,006.72

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Solution

The fourth proportional to 7,150.54, 9,867.72 and 4,006.72 is: 5,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.54 : 9,867.72 = 4,006.72 : x
  2. Step 2: Convert to fraction form
    7,150.54/9,867.72 = 4,006.72/x
  3. Step 3: Cross multiply
    7,150.54x = 9,867.72 × 4,006.72
  4. Step 4: Simplify right side
    7,150.54x = 39,537,246.19
  5. Step 5: Solve for x
    x = 39,537,246.19/7,150.54
  6. Step 6: Final answer
    x = 5,529.27

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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.