Home / 7,176.20-9,856.45-7,003.40

Finding the Fourth Proportional to 7,176.20, 9,856.45 and 7,003.40

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Solution

The fourth proportional to 7,176.20, 9,856.45 and 7,003.40 is: 9,619.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.20 : 9,856.45 = 7,003.40 : x
  2. Step 2: Convert to fraction form
    7,176.20/9,856.45 = 7,003.40/x
  3. Step 3: Cross multiply
    7,176.20x = 9,856.45 × 7,003.40
  4. Step 4: Simplify right side
    7,176.20x = 69,028,661.93
  5. Step 5: Solve for x
    x = 69,028,661.93/7,176.20
  6. Step 6: Final answer
    x = 9,619.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.