Home / 11,146.79-16,710.98-5,220.75

Finding the Fourth Proportional to 11,146.79, 16,710.98 and 5,220.75

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Solution

The fourth proportional to 11,146.79, 16,710.98 and 5,220.75 is: 7,826.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.79 : 16,710.98 = 5,220.75 : x
  2. Step 2: Convert to fraction form
    11,146.79/16,710.98 = 5,220.75/x
  3. Step 3: Cross multiply
    11,146.79x = 16,710.98 × 5,220.75
  4. Step 4: Simplify right side
    11,146.79x = 87,243,848.84
  5. Step 5: Solve for x
    x = 87,243,848.84/11,146.79
  6. Step 6: Final answer
    x = 7,826.81

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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.