Home / 7,151.45-9,868.98-4,007.64

Finding the Fourth Proportional to 7,151.45, 9,868.98 and 4,007.64

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Solution

The fourth proportional to 7,151.45, 9,868.98 and 4,007.64 is: 5,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.45 : 9,868.98 = 4,007.64 : x
  2. Step 2: Convert to fraction form
    7,151.45/9,868.98 = 4,007.64/x
  3. Step 3: Cross multiply
    7,151.45x = 9,868.98 × 4,007.64
  4. Step 4: Simplify right side
    7,151.45x = 39,551,269.66
  5. Step 5: Solve for x
    x = 39,551,269.66/7,151.45
  6. Step 6: Final answer
    x = 5,530.52

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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.