Home / 9,187.88-12,679.26-5,602.84

Finding the Fourth Proportional to 9,187.88, 12,679.26 and 5,602.84

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Solution

The fourth proportional to 9,187.88, 12,679.26 and 5,602.84 is: 7,731.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.88 : 12,679.26 = 5,602.84 : x
  2. Step 2: Convert to fraction form
    9,187.88/12,679.26 = 5,602.84/x
  3. Step 3: Cross multiply
    9,187.88x = 12,679.26 × 5,602.84
  4. Step 4: Simplify right side
    9,187.88x = 71,039,865.10
  5. Step 5: Solve for x
    x = 71,039,865.10/9,187.88
  6. Step 6: Final answer
    x = 7,731.91

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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.