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Finding the Fourth Proportional to 7,150.35, 9,867.32 and 4,006.47

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Solution

The fourth proportional to 7,150.35, 9,867.32 and 4,006.47 is: 5,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.35 : 9,867.32 = 4,006.47 : x
  2. Step 2: Convert to fraction form
    7,150.35/9,867.32 = 4,006.47/x
  3. Step 3: Cross multiply
    7,150.35x = 9,867.32 × 4,006.47
  4. Step 4: Simplify right side
    7,150.35x = 39,533,101.53
  5. Step 5: Solve for x
    x = 39,533,101.53/7,150.35
  6. Step 6: Final answer
    x = 5,528.83

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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.