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Finding the Fourth Proportional to 9,303.20, 13,933.20 and 9,087.20

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Solution

The fourth proportional to 9,303.20, 13,933.20 and 9,087.20 is: 13,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,303.20 : 13,933.20 = 9,087.20 : x
  2. Step 2: Convert to fraction form
    9,303.20/13,933.20 = 9,087.20/x
  3. Step 3: Cross multiply
    9,303.20x = 13,933.20 × 9,087.20
  4. Step 4: Simplify right side
    9,303.20x = 126,613,775.04
  5. Step 5: Solve for x
    x = 126,613,775.04/9,303.20
  6. Step 6: Final answer
    x = 13,609.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.