Home / 7,151.08-9,867.46-4,007.40

Finding the Fourth Proportional to 7,151.08, 9,867.46 and 4,007.40

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Solution

The fourth proportional to 7,151.08, 9,867.46 and 4,007.40 is: 5,529.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.08 : 9,867.46 = 4,007.40 : x
  2. Step 2: Convert to fraction form
    7,151.08/9,867.46 = 4,007.40/x
  3. Step 3: Cross multiply
    7,151.08x = 9,867.46 × 4,007.40
  4. Step 4: Simplify right side
    7,151.08x = 39,542,859.20
  5. Step 5: Solve for x
    x = 39,542,859.20/7,151.08
  6. Step 6: Final answer
    x = 5,529.63

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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.