Home / 9,171.05-12,661.45-5,587.36

Finding the Fourth Proportional to 9,171.05, 12,661.45 and 5,587.36

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Solution

The fourth proportional to 9,171.05, 12,661.45 and 5,587.36 is: 7,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.05 : 12,661.45 = 5,587.36 : x
  2. Step 2: Convert to fraction form
    9,171.05/12,661.45 = 5,587.36/x
  3. Step 3: Cross multiply
    9,171.05x = 12,661.45 × 5,587.36
  4. Step 4: Simplify right side
    9,171.05x = 70,744,043.99
  5. Step 5: Solve for x
    x = 70,744,043.99/9,171.05
  6. Step 6: Final answer
    x = 7,713.85

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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.