Home / 11,688.91-17,534.28-3,897.72

Finding the Fourth Proportional to 11,688.91, 17,534.28 and 3,897.72

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Solution

The fourth proportional to 11,688.91, 17,534.28 and 3,897.72 is: 5,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.91 : 17,534.28 = 3,897.72 : x
  2. Step 2: Convert to fraction form
    11,688.91/17,534.28 = 3,897.72/x
  3. Step 3: Cross multiply
    11,688.91x = 17,534.28 × 3,897.72
  4. Step 4: Simplify right side
    11,688.91x = 68,343,713.84
  5. Step 5: Solve for x
    x = 68,343,713.84/11,688.91
  6. Step 6: Final answer
    x = 5,846.89

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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.