Home / 9,188.08-12,679.14-5,208.96

Finding the Fourth Proportional to 9,188.08, 12,679.14 and 5,208.96

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Solution

The fourth proportional to 9,188.08, 12,679.14 and 5,208.96 is: 7,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.08 : 12,679.14 = 5,208.96 : x
  2. Step 2: Convert to fraction form
    9,188.08/12,679.14 = 5,208.96/x
  3. Step 3: Cross multiply
    9,188.08x = 12,679.14 × 5,208.96
  4. Step 4: Simplify right side
    9,188.08x = 66,045,133.09
  5. Step 5: Solve for x
    x = 66,045,133.09/9,188.08
  6. Step 6: Final answer
    x = 7,188.13

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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.