Home / 13,920.71-20,876.60-4,558.19

Finding the Fourth Proportional to 13,920.71, 20,876.60 and 4,558.19

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Solution

The fourth proportional to 13,920.71, 20,876.60 and 4,558.19 is: 6,835.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.71 : 20,876.60 = 4,558.19 : x
  2. Step 2: Convert to fraction form
    13,920.71/20,876.60 = 4,558.19/x
  3. Step 3: Cross multiply
    13,920.71x = 20,876.60 × 4,558.19
  4. Step 4: Simplify right side
    13,920.71x = 95,159,416.37
  5. Step 5: Solve for x
    x = 95,159,416.37/13,920.71
  6. Step 6: Final answer
    x = 6,835.82

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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.