Home / 9,186.28-12,678.06-5,206.97

Finding the Fourth Proportional to 9,186.28, 12,678.06 and 5,206.97

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Solution

The fourth proportional to 9,186.28, 12,678.06 and 5,206.97 is: 7,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.28 : 12,678.06 = 5,206.97 : x
  2. Step 2: Convert to fraction form
    9,186.28/12,678.06 = 5,206.97/x
  3. Step 3: Cross multiply
    9,186.28x = 12,678.06 × 5,206.97
  4. Step 4: Simplify right side
    9,186.28x = 66,014,188.65
  5. Step 5: Solve for x
    x = 66,014,188.65/9,186.28
  6. Step 6: Final answer
    x = 7,186.18

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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.