Home / 18,186.07-27,285.77-7,658.74

Finding the Fourth Proportional to 18,186.07, 27,285.77 and 7,658.74

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Solution

The fourth proportional to 18,186.07, 27,285.77 and 7,658.74 is: 11,490.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.07 : 27,285.77 = 7,658.74 : x
  2. Step 2: Convert to fraction form
    18,186.07/27,285.77 = 7,658.74/x
  3. Step 3: Cross multiply
    18,186.07x = 27,285.77 × 7,658.74
  4. Step 4: Simplify right side
    18,186.07x = 208,974,649.84
  5. Step 5: Solve for x
    x = 208,974,649.84/18,186.07
  6. Step 6: Final answer
    x = 11,490.92

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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.