Home / 13,912.51-20,869.45-4,551.69

Finding the Fourth Proportional to 13,912.51, 20,869.45 and 4,551.69

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Solution

The fourth proportional to 13,912.51, 20,869.45 and 4,551.69 is: 6,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.51 : 20,869.45 = 4,551.69 : x
  2. Step 2: Convert to fraction form
    13,912.51/20,869.45 = 4,551.69/x
  3. Step 3: Cross multiply
    13,912.51x = 20,869.45 × 4,551.69
  4. Step 4: Simplify right side
    13,912.51x = 94,991,333.75
  5. Step 5: Solve for x
    x = 94,991,333.75/13,912.51
  6. Step 6: Final answer
    x = 6,827.76

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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.